31232433427213 has 2 divisors, whose sum is σ = 31232433427214. Its totient is φ = 31232433427212.

The previous prime is 31232433427201. The next prime is 31232433427229. The reversal of 31232433427213 is 31272433423213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24403629640009 + 6828803787204 = 4940003^2 + 2613198^2 .

It is a cyclic number.

It is not a de Polignac number, because 31232433427213 - 2¹³ = 31232433419021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31232433427513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15616216713606 + 15616216713607.

It is an arithmetic number, because the mean of its divisors is an integer number (15616216713607).

Almost surely, 2^{31232433427213} is an apocalyptic number.

It is an amenable number.

31232433427213 is a deficient number, since it is larger than the sum of its proper divisors (1).

31232433427213 is an equidigital number, since it uses as much as digits as its factorization.

31232433427213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 40.

The spelling of 31232433427213 in words is "thirty-one trillion, two hundred thirty-two billion, four hundred thirty-three million, four hundred twenty-seven thousand, two hundred thirteen".