31431323413379 has 2 divisors, whose sum is σ = 31431323413380. Its totient is φ = 31431323413378.

The previous prime is 31431323413367. The next prime is 31431323413409. The reversal of 31431323413379 is 97331432313413.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31431323413379 is a prime.

It is not a weakly prime, because it can be changed into another prime (31431323413309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15715661706689 + 15715661706690.

It is an arithmetic number, because the mean of its divisors is an integer number (15715661706690).

Almost surely, 2^{31431323413379} is an apocalyptic number.

31431323413379 is a deficient number, since it is larger than the sum of its proper divisors (1).

31431323413379 is an equidigital number, since it uses as much as digits as its factorization.

31431323413379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 47.

The spelling of 31431323413379 in words is "thirty-one trillion, four hundred thirty-one billion, three hundred twenty-three million, four hundred thirteen thousand, three hundred seventy-nine".