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101011311312 = 24323127720439
BaseRepresentation
bin101111000010010111…
…1100100101011010000
3100122201122121021120020
41132010233210223100
53123332343430222
6114223130543440
710204103656662
oct1360457445320
9318648537506
10101011311312
113992528527a
12176b0597b80
1396aa1aa2c2
144c634b4532
152962e0265c
hex1784be4ad0

101011311312 has 80 divisors (see below), whose sum is σ = 274435768320. Its totient is φ = 31952866176.

The previous prime is 101011311311. The next prime is 101011311341. The reversal of 101011311312 is 213113110101.

It is a super-2 number, since 2×1010113113122 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101011311291 and 101011311300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101011311311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220012 + ... + 500427.

It is an arithmetic number, because the mean of its divisors is an integer number (3430447104).

Almost surely, 2101011311312 is an apocalyptic number.

101011311312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101011311312 is an abundant number, since it is smaller than the sum of its proper divisors (173424457008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101011311312 is a wasteful number, since it uses less digits than its factorization.

101011311312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720600 (or 720594 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 101011311312 its reverse (213113110101), we get a palindrome (314124421413).

The spelling of 101011311312 in words is "one hundred one billion, eleven million, three hundred eleven thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 23 24 46 48 69 92 127 138 184 254 276 368 381 508 552 762 1016 1104 1524 2032 2921 3048 5842 6096 8763 11684 17526 23368 35052 46736 70104 140208 720439 1440878 2161317 2881756 4322634 5763512 8645268 11527024 16570097 17290536 33140194 34581072 49710291 66280388 91495753 99420582 132560776 182991506 198841164 265121552 274487259 365983012 397682328 548974518 731966024 795364656 1097949036 1463932048 2104402319 2195898072 4208804638 4391796144 6313206957 8417609276 12626413914 16835218552 25252827828 33670437104 50505655656 101011311312