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101021112101 = 72135910725121
BaseRepresentation
bin101111000010101010…
…0111101011100100101
3100122202100001012201102
41132011110331130211
53123342401041401
6114224121005445
710204253166500
oct1360524753445
9318670035642
10101021112101
113992a8697a8
12176b3923885
1396ac22c2a0
144c64906137
152963bdb56b
hex178553d725

101021112101 has 48 divisors (see below), whose sum is σ = 129906866880. Its totient is φ = 77836631040.

The previous prime is 101021112047. The next prime is 101021112121. The reversal of 101021112101 is 101211120101.

It is not a de Polignac number, because 101021112101 - 218 = 101020849957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101021112121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4008821 + ... + 4033941.

It is an arithmetic number, because the mean of its divisors is an integer number (2706393060).

Almost surely, 2101021112101 is an apocalyptic number.

It is an amenable number.

101021112101 is a deficient number, since it is larger than the sum of its proper divisors (28885754779).

101021112101 is a wasteful number, since it uses less digits than its factorization.

101021112101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25314 (or 25307 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 101021112101 its reverse (101211120101), we get a palindrome (202232232202).

The spelling of 101021112101 in words is "one hundred one billion, twenty-one million, one hundred twelve thousand, one hundred one".

Divisors: 1 7 13 49 59 91 107 413 637 749 767 1391 2891 5243 5369 6313 9737 25121 37583 44191 68159 82069 175847 309337 326573 574483 1230929 1482139 2286011 2687947 4021381 10374973 16002077 18815629 19267807 34943311 72624811 131709403 134874649 158588873 244603177 944122543 1110122111 1712222239 2061655349 7770854777 14431587443 101021112101