31331412037 has 2 divisors, whose sum is σ = 31331412038. Its totient is φ = 31331412036.

The previous prime is 31331411999. The next prime is 31331412059. The reversal of 31331412037 is 73021413313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31325814081 + 5597956 = 176991^2 + 2366^2 .

It is a cyclic number.

It is not a de Polignac number, because 31331412037 - 2¹⁵ = 31331379269 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31331411996 and 31331412014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31331419037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15665706018 + 15665706019.

It is an arithmetic number, because the mean of its divisors is an integer number (15665706019).

Almost surely, 2^31331412037 is an apocalyptic number.

It is an amenable number.

31331412037 is a deficient number, since it is larger than the sum of its proper divisors (1).

31331412037 is an equidigital number, since it uses as much as digits as its factorization.

31331412037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 28.

The spelling of 31331412037 in words is "thirty-one billion, three hundred thirty-one million, four hundred twelve thousand, thirty-seven".