99999233333331 has 4 divisors (see below), whose sum is σ = 133332311111112. Its totient is φ = 66666155555552.

The previous prime is 99999233333327. The next prime is 99999233333369. The reversal of 99999233333331 is 13333333299999.

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 99999233333331 - 2² = 99999233333327 is a prime.

It is a super-2 number, since 2×99999233333331² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99999233333231) 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, 16666538888886 + ... + 16666538888891.

It is an arithmetic number, because the mean of its divisors is an integer number (33333077777778).

Almost surely, 2^{99999233333331} is an apocalyptic number.

99999233333331 is a deficient number, since it is larger than the sum of its proper divisors (33333077777781).

99999233333331 is a wasteful number, since it uses less digits than its factorization.

99999233333331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33333077777780.

The product of its digits is 258280326, while the sum is 69.

The spelling of 99999233333331 in words is "ninety-nine trillion, nine hundred ninety-nine billion, two hundred thirty-three million, three hundred thirty-three thousand, three hundred thirty-one".