31223414313139 has 2 divisors, whose sum is σ = 31223414313140. Its totient is φ = 31223414313138.

The previous prime is 31223414313067. The next prime is 31223414313149. The reversal of 31223414313139 is 93131341432213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31223414313139 - 2¹⁹ = 31223413788851 is a prime.

It is a super-2 number, since 2×31223414313139² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31223414313149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15611707156569 + 15611707156570.

It is an arithmetic number, because the mean of its divisors is an integer number (15611707156570).

Almost surely, 2^{31223414313139} is an apocalyptic number.

31223414313139 is a deficient number, since it is larger than the sum of its proper divisors (1).

31223414313139 is an equidigital number, since it uses as much as digits as its factorization.

31223414313139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 40.

The spelling of 31223414313139 in words is "thirty-one trillion, two hundred twenty-three billion, four hundred fourteen million, three hundred thirteen thousand, one hundred thirty-nine".