99232131031 has 4 divisors (see below), whose sum is σ = 108253233864. Its totient is φ = 90211028200.

The previous prime is 99232130999. The next prime is 99232131059. The reversal of 99232131031 is 13013123299.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99232131031 - 2⁵ = 99232130999 is a prime.

It is a super-2 number, since 2×99232131031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99232141031) 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, 4510551400 + ... + 4510551421.

It is an arithmetic number, because the mean of its divisors is an integer number (27063308466).

Almost surely, 2^99232131031 is an apocalyptic number.

99232131031 is a deficient number, since it is larger than the sum of its proper divisors (9021102833).

99232131031 is a wasteful number, since it uses less digits than its factorization.

99232131031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9021102832.

The product of its (nonzero) digits is 8748, while the sum is 34.

The spelling of 99232131031 in words is "ninety-nine billion, two hundred thirty-two million, one hundred thirty-one thousand, thirty-one".