312984031 has 2 divisors, whose sum is σ = 312984032. Its totient is φ = 312984030.

The previous prime is 312984019. The next prime is 312984041. The reversal of 312984031 is 130489213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312984031 - 2⁹ = 312983519 is a prime.

It is a super-2 number, since 2×312984031² = 195918007322017922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 312983984 and 312984002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312984041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156492015 + 156492016.

It is an arithmetic number, because the mean of its divisors is an integer number (156492016).

Almost surely, 2^312984031 is an apocalyptic number.

312984031 is a deficient number, since it is larger than the sum of its proper divisors (1).

312984031 is an equidigital number, since it uses as much as digits as its factorization.

312984031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 312984031 is about 17691.3546965743. The cubic root of 312984031 is about 678.9545866847.

The spelling of 312984031 in words is "three hundred twelve million, nine hundred eighty-four thousand, thirty-one".