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101031012001 = 370127298301
BaseRepresentation
bin101111000010111101…
…0101110011010100001
3100122210000200011211101
41132011322232122201
53123402414341001
6114225113114401
710204433301253
oct1360572563241
9318700604741
10101031012001
1139935410737
12176b70b8a01
1396b12b740a
144c65d61cd3
1529649e4a01
hex1785eae6a1

101031012001 has 4 divisors (see below), whose sum is σ = 101058314004. Its totient is φ = 101003710000.

The previous prime is 101031011999. The next prime is 101031012073. The reversal of 101031012001 is 100210130101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100210130101 = 919109042579.

It can be written as a sum of positive squares in 2 ways, for example, as 33626390625 + 67404621376 = 183375^2 + 259624^2 .

It is a cyclic number.

It is not a de Polignac number, because 101031012001 - 21 = 101031011999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101031012101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13645450 + ... + 13652851.

It is an arithmetic number, because the mean of its divisors is an integer number (25264578501).

Almost surely, 2101031012001 is an apocalyptic number.

It is an amenable number.

101031012001 is a deficient number, since it is larger than the sum of its proper divisors (27302003).

101031012001 is an equidigital number, since it uses as much as digits as its factorization.

101031012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27302002.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 101031012001 its reverse (100210130101), we get a palindrome (201241142102).

The spelling of 101031012001 in words is "one hundred one billion, thirty-one million, twelve thousand, one".

Divisors: 1 3701 27298301 101031012001