31432953271 has 2 divisors, whose sum is σ = 31432953272. Its totient is φ = 31432953270.

The previous prime is 31432953241. The next prime is 31432953281. The reversal of 31432953271 is 17235923413.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31432953271 - 2⁵ = 31432953239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31432953241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15716476635 + 15716476636.

It is an arithmetic number, because the mean of its divisors is an integer number (15716476636).

Almost surely, 2^31432953271 is an apocalyptic number.

31432953271 is a deficient number, since it is larger than the sum of its proper divisors (1).

31432953271 is an equidigital number, since it uses as much as digits as its factorization.

31432953271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 40.

The spelling of 31432953271 in words is "thirty-one billion, four hundred thirty-two million, nine hundred fifty-three thousand, two hundred seventy-one".