31312384627 has 2 divisors, whose sum is σ = 31312384628. Its totient is φ = 31312384626.

The previous prime is 31312384619. The next prime is 31312384669. The reversal of 31312384627 is 72648321313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31312384627 - 2³ = 31312384619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31312384627.

It is not a weakly prime, because it can be changed into another prime (31312384027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15656192313 + 15656192314.

It is an arithmetic number, because the mean of its divisors is an integer number (15656192314).

Almost surely, 2^31312384627 is an apocalyptic number.

31312384627 is a deficient number, since it is larger than the sum of its proper divisors (1).

31312384627 is an equidigital number, since it uses as much as digits as its factorization.

31312384627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 40.

The spelling of 31312384627 in words is "thirty-one billion, three hundred twelve million, three hundred eighty-four thousand, six hundred twenty-seven".