99931431013111 has 8 divisors (see below), whose sum is σ = 104283148692960. Its totient is φ = 95580286071072.

The previous prime is 99931431013097. The next prime is 99931431013213. The reversal of 99931431013111 is 11131013413999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99931431013111 - 2²¹ = 99931428915959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99931431013811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142827876 + ... + 143525833.

It is an arithmetic number, because the mean of its divisors is an integer number (13035393586620).

Almost surely, 2^{99931431013111} is an apocalyptic number.

99931431013111 is a deficient number, since it is larger than the sum of its proper divisors (4351717679849).

99931431013111 is a wasteful number, since it uses less digits than its factorization.

99931431013111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286368905.

The product of its (nonzero) digits is 78732, while the sum is 46.

The spelling of 99931431013111 in words is "ninety-nine trillion, nine hundred thirty-one billion, four hundred thirty-one million, thirteen thousand, one hundred eleven".