231502611313 has 2 divisors, whose sum is σ = 231502611314. Its totient is φ = 231502611312.

The previous prime is 231502611293. The next prime is 231502611317. The reversal of 231502611313 is 313116205132.

It is a happy number.

231502611313 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., 119068473969 + 112434137344 = 345063^2 + 335312^2 .

It is a cyclic number.

It is not a de Polignac number, because 231502611313 - 2⁵ = 231502611281 is a prime.

It is not a weakly prime, because it can be changed into another prime (231502611317) 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, 115751305656 + 115751305657.

It is an arithmetic number, because the mean of its divisors is an integer number (115751305657).

Almost surely, 2^231502611313 is an apocalyptic number.

It is an amenable number.

231502611313 is a deficient number, since it is larger than the sum of its proper divisors (1).

231502611313 is an equidigital number, since it uses as much as digits as its factorization.

231502611313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

Adding to 231502611313 its reverse (313116205132), we get a palindrome (544618816445).

The spelling of 231502611313 in words is "two hundred thirty-one billion, five hundred two million, six hundred eleven thousand, three hundred thirteen".