99231135234077 has 8 divisors (see below), whose sum is σ = 123716740032192. Its totient is φ = 77322962520000.

The previous prime is 99231135234073. The next prime is 99231135234079. The reversal of 99231135234077 is 77043253113299.

It is a happy number.

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 99231135234077 - 2² = 99231135234073 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 (99231135234073) 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, 644358020924 + ... + 644358021077.

It is an arithmetic number, because the mean of its divisors is an integer number (15464592504024).

Almost surely, 2^{99231135234077} is an apocalyptic number.

It is an amenable number.

99231135234077 is a deficient number, since it is larger than the sum of its proper divisors (24485604798115).

99231135234077 is a wasteful number, since it uses less digits than its factorization.

99231135234077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288716042019.

The product of its (nonzero) digits is 8573040, while the sum is 56.

The spelling of 99231135234077 in words is "ninety-nine trillion, two hundred thirty-one billion, one hundred thirty-five million, two hundred thirty-four thousand, seventy-seven".