31310001929 has 2 divisors, whose sum is σ = 31310001930. Its totient is φ = 31310001928.

The previous prime is 31310001881. The next prime is 31310001973. The reversal of 31310001929 is 92910001313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24262735225 + 7047266704 = 155765^2 + 83948^2 .

It is a cyclic number.

It is not a de Polignac number, because 31310001929 - 2⁸ = 31310001673 is a prime.

It is not a weakly prime, because it can be changed into another prime (31310006929) 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, 15655000964 + 15655000965.

It is an arithmetic number, because the mean of its divisors is an integer number (15655000965).

Almost surely, 2^31310001929 is an apocalyptic number.

It is an amenable number.

31310001929 is a deficient number, since it is larger than the sum of its proper divisors (1).

31310001929 is an equidigital number, since it uses as much as digits as its factorization.

31310001929 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 31310001929 in words is "thirty-one billion, three hundred ten million, one thousand, nine hundred twenty-nine".