311432099 has 12 divisors (see below), whose sum is σ = 344834952. Its totient is φ = 281038560.

The previous prime is 311432083. The next prime is 311432111. The reversal of 311432099 is 990234113.

It is not a de Polignac number, because 311432099 - 2⁴ = 311432083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (311432599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7184 + ... + 25970.

It is an arithmetic number, because the mean of its divisors is an integer number (28736246).

Almost surely, 2^311432099 is an apocalyptic number.

311432099 is a deficient number, since it is larger than the sum of its proper divisors (33402853).

311432099 is a wasteful number, since it uses less digits than its factorization.

311432099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18946 (or 18935 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 311432099 is about 17647.4388793388. The cubic root of 311432099 is about 677.8305274830.

The spelling of 311432099 in words is "three hundred eleven million, four hundred thirty-two thousand, ninety-nine".