31021131000099 has 16 divisors (see below), whose sum is σ = 41744076343200. Its totient is φ = 20489498055936.

The previous prime is 31021131000017. The next prime is 31021131000137. The reversal of 31021131000099 is 99000013112013.

It is a happy number.

It is not a de Polignac number, because 31021131000099 - 2¹¹ = 31021130998051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31021131000199) 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, 882727 + ... + 7925999.

It is an arithmetic number, because the mean of its divisors is an integer number (2609004771450).

Almost surely, 2^{31021131000099} is an apocalyptic number.

31021131000099 is a deficient number, since it is larger than the sum of its proper divisors (10722945343101).

31021131000099 is a wasteful number, since it uses less digits than its factorization.

31021131000099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7056854.

The product of its (nonzero) digits is 1458, while the sum is 30.

The spelling of 31021131000099 in words is "thirty-one trillion, twenty-one billion, one hundred thirty-one million, ninety-nine", and thus it is an aban number.