31432953239 has 2 divisors, whose sum is σ = 31432953240. Its totient is φ = 31432953238.

The previous prime is 31432953191. The next prime is 31432953241. The reversal of 31432953239 is 93235923413.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31432953239 - 2¹² = 31432949143 is a prime.

It is a super-2 number, since 2×31432953239² (a number of 22 digits) contains 22 as substring.

Together with 31432953241, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31432953239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31432953439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15716476619 + 15716476620.

It is an arithmetic number, because the mean of its divisors is an integer number (15716476620).

Almost surely, 2^31432953239 is an apocalyptic number.

31432953239 is a deficient number, since it is larger than the sum of its proper divisors (1).

31432953239 is an equidigital number, since it uses as much as digits as its factorization.

31432953239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 524880, while the sum is 44.

The spelling of 31432953239 in words is "thirty-one billion, four hundred thirty-two million, nine hundred fifty-three thousand, two hundred thirty-nine".