31047304427 has 2 divisors, whose sum is σ = 31047304428. Its totient is φ = 31047304426.

The previous prime is 31047304373. The next prime is 31047304433. The reversal of 31047304427 is 72440374013.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31047304427 - 2⁶ = 31047304363 is a prime.

It is a super-2 number, since 2×31047304427² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31047204427) 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, 15523652213 + 15523652214.

It is an arithmetic number, because the mean of its divisors is an integer number (15523652214).

Almost surely, 2^31047304427 is an apocalyptic number.

31047304427 is a deficient number, since it is larger than the sum of its proper divisors (1).

31047304427 is an equidigital number, since it uses as much as digits as its factorization.

31047304427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 35.

The spelling of 31047304427 in words is "thirty-one billion, forty-seven million, three hundred four thousand, four hundred twenty-seven".