232131013 has 2 divisors, whose sum is σ = 232131014. Its totient is φ = 232131012.

The previous prime is 232131001. The next prime is 232131023. The reversal of 232131013 is 310131232.

232131013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197767969 + 34363044 = 14063^2 + 5862^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-232131013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232131023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116065506 + 116065507.

It is an arithmetic number, because the mean of its divisors is an integer number (116065507).

Almost surely, 2^232131013 is an apocalyptic number.

It is an amenable number.

232131013 is a deficient number, since it is larger than the sum of its proper divisors (1).

232131013 is an equidigital number, since it uses as much as digits as its factorization.

232131013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 232131013 is about 15235.8463171561. The cubic root of 232131013 is about 614.5790081544.

Adding to 232131013 its reverse (310131232), we get a palindrome (542262245).

The spelling of 232131013 in words is "two hundred thirty-two million, one hundred thirty-one thousand, thirteen".