231023301013 has 2 divisors, whose sum is σ = 231023301014. Its totient is φ = 231023301012.

The previous prime is 231023300987. The next prime is 231023301023. The reversal of 231023301013 is 310103320132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230325126084 + 698174929 = 479922^2 + 26423^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231023301013 is a prime.

It is a super-2 number, since 2×231023301013² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231023301023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115511650506 + 115511650507.

It is an arithmetic number, because the mean of its divisors is an integer number (115511650507).

Almost surely, 2^231023301013 is an apocalyptic number.

It is an amenable number.

231023301013 is a deficient number, since it is larger than the sum of its proper divisors (1).

231023301013 is an equidigital number, since it uses as much as digits as its factorization.

231023301013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 231023301013 its reverse (310103320132), we get a palindrome (541126621145).

The spelling of 231023301013 in words is "two hundred thirty-one billion, twenty-three million, three hundred one thousand, thirteen".