99831013899 has 4 divisors (see below), whose sum is σ = 133108018536. Its totient is φ = 66554009264.

The previous prime is 99831013813. The next prime is 99831013901.

99831013899 is nontrivially palindromic in base 10.

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 99831013899 - 2²³ = 99822625291 is a prime.

It is a super-2 number, since 2×99831013899² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99831013999) 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, 16638502314 + ... + 16638502319.

It is an arithmetic number, because the mean of its divisors is an integer number (33277004634).

Almost surely, 2^99831013899 is an apocalyptic number.

99831013899 is a deficient number, since it is larger than the sum of its proper divisors (33277004637).

99831013899 is a wasteful number, since it uses less digits than its factorization.

99831013899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33277004636.

The product of its (nonzero) digits is 3779136, while the sum is 60.

The spelling of 99831013899 in words is "ninety-nine billion, eight hundred thirty-one million, thirteen thousand, eight hundred ninety-nine".