311199939 has 12 divisors (see below), whose sum is σ = 450316776. Its totient is φ = 207094752.

The previous prime is 311199923. The next prime is 311199953. The reversal of 311199939 is 939991113.

It is not a de Polignac number, because 311199939 - 2⁴ = 311199923 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 311199894 and 311199903.

It is not an unprimeable number, because it can be changed into a prime (311199439) 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, 25642 + ... + 35775.

It is an arithmetic number, because the mean of its divisors is an integer number (37526398).

Almost surely, 2^311199939 is an apocalyptic number.

311199939 is a deficient number, since it is larger than the sum of its proper divisors (139116837).

311199939 is a wasteful number, since it uses less digits than its factorization.

311199939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61986 (or 61983 counting only the distinct ones).

The product of its digits is 59049, while the sum is 45.

The square root of 311199939 is about 17640.8599280194. The cubic root of 311199939 is about 677.6620538895.

The spelling of 311199939 in words is "three hundred eleven million, one hundred ninety-nine thousand, nine hundred thirty-nine".