31002112101 has 16 divisors (see below), whose sum is σ = 43775762688. Its totient is φ = 19448716800.

The previous prime is 31002112073. The next prime is 31002112111. The reversal of 31002112101 is 10121120013.

It is not a de Polignac number, because 31002112101 - 2¹⁴ = 31002095717 is a prime.

It is a super-2 number, since 2×31002112101² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31002112111) 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, 238041 + ... + 344481.

It is an arithmetic number, because the mean of its divisors is an integer number (2735985168).

Almost surely, 2^31002112101 is an apocalyptic number.

It is an amenable number.

31002112101 is a deficient number, since it is larger than the sum of its proper divisors (12773650587).

31002112101 is a wasteful number, since it uses less digits than its factorization.

31002112101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112172.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 31002112101 its reverse (10121120013), we get a palindrome (41123232114).

The spelling of 31002112101 in words is "thirty-one billion, two million, one hundred twelve thousand, one hundred one".