31234031399 has 2 divisors, whose sum is σ = 31234031400. Its totient is φ = 31234031398.

The previous prime is 31234031357. The next prime is 31234031401. The reversal of 31234031399 is 99313043213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31234031399 - 2²⁸ = 30965595943 is a prime.

Together with 31234031401, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31234037399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15617015699 + 15617015700.

It is an arithmetic number, because the mean of its divisors is an integer number (15617015700).

Almost surely, 2^31234031399 is an apocalyptic number.

31234031399 is a deficient number, since it is larger than the sum of its proper divisors (1).

31234031399 is an equidigital number, since it uses as much as digits as its factorization.

31234031399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 38.

The spelling of 31234031399 in words is "thirty-one billion, two hundred thirty-four million, thirty-one thousand, three hundred ninety-nine".