31042612369 has 2 divisors, whose sum is σ = 31042612370. Its totient is φ = 31042612368.

The previous prime is 31042612283. The next prime is 31042612387. The reversal of 31042612369 is 96321624013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30844140625 + 198471744 = 175625^2 + 14088^2 .

It is a cyclic number.

It is not a de Polignac number, because 31042612369 - 2¹⁹ = 31042088081 is a prime.

It is a super-2 number, since 2×31042612369² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31042615369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15521306184 + 15521306185.

It is an arithmetic number, because the mean of its divisors is an integer number (15521306185).

Almost surely, 2^31042612369 is an apocalyptic number.

It is an amenable number.

31042612369 is a deficient number, since it is larger than the sum of its proper divisors (1).

31042612369 is an equidigital number, since it uses as much as digits as its factorization.

31042612369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 37.

The spelling of 31042612369 in words is "thirty-one billion, forty-two million, six hundred twelve thousand, three hundred sixty-nine".