99311312 has 20 divisors (see below), whose sum is σ = 199051620. Its totient is φ = 47943168.

The previous prime is 99311299. The next prime is 99311327. The reversal of 99311312 is 21311399.

It can be written as a sum of positive squares in 2 ways, for example, as 73342096 + 25969216 = 8564^2 + 5096^2 .

It is a super-2 number, since 2×99311312² = 19725473382322688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106553 + ... + 107480.

It is an arithmetic number, because the mean of its divisors is an integer number (9952581).

Almost surely, 2^99311312 is an apocalyptic number.

It is an amenable number.

99311312 is an abundant number, since it is smaller than the sum of its proper divisors (99740308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99311312 is a wasteful number, since it uses less digits than its factorization.

99311312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214070 (or 214064 counting only the distinct ones).

The product of its digits is 1458, while the sum is 29.

The square root of 99311312 is about 9965.5061085727. The cubic root of 99311312 is about 463.0908923774.

The spelling of 99311312 in words is "ninety-nine million, three hundred eleven thousand, three hundred twelve".