31312323323147 has 2 divisors, whose sum is σ = 31312323323148. Its totient is φ = 31312323323146.

The previous prime is 31312323323137. The next prime is 31312323323161. The reversal of 31312323323147 is 74132332321313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31312323323147 - 2¹⁰ = 31312323322123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31312323323147.

It is not a weakly prime, because it can be changed into another prime (31312323323137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15656161661573 + 15656161661574.

It is an arithmetic number, because the mean of its divisors is an integer number (15656161661574).

Almost surely, 2^{31312323323147} is an apocalyptic number.

31312323323147 is a deficient number, since it is larger than the sum of its proper divisors (1).

31312323323147 is an equidigital number, since it uses as much as digits as its factorization.

31312323323147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 38.

The spelling of 31312323323147 in words is "thirty-one trillion, three hundred twelve billion, three hundred twenty-three million, three hundred twenty-three thousand, one hundred forty-seven".