99999913331 has 8 divisors (see below), whose sum is σ = 106019963280. Its totient is φ = 93995163648.

The previous prime is 99999913319. The next prime is 99999913369. The reversal of 99999913331 is 13331999999.

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 99999913331 - 2¹⁸ = 99999651187 is a prime.

It is a super-2 number, since 2×99999913331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99999913381) 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, 3811601 + ... + 3837746.

It is an arithmetic number, because the mean of its divisors is an integer number (13252495410).

Almost surely, 2^99999913331 is an apocalyptic number.

99999913331 is a deficient number, since it is larger than the sum of its proper divisors (6020049949).

99999913331 is a wasteful number, since it uses less digits than its factorization.

99999913331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7650133.

The product of its digits is 14348907, while the sum is 65.

The spelling of 99999913331 in words is "ninety-nine billion, nine hundred ninety-nine million, nine hundred thirteen thousand, three hundred thirty-one".