231002113020013 has 4 divisors (see below), whose sum is σ = 231002163682528. Its totient is φ = 231002062357500.

The previous prime is 231002113019959. The next prime is 231002113020067. The reversal of 231002113020013 is 310020311200132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (231002113019959) and next prime (231002113020067).

It is a cyclic number.

It is not a de Polignac number, because 231002113020013 - 2²¹ = 231002110922861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231002113020313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17731881 + ... + 27864382.

It is an arithmetic number, because the mean of its divisors is an integer number (57750540920632).

Almost surely, 2^{231002113020013} is an apocalyptic number.

It is an amenable number.

231002113020013 is a deficient number, since it is larger than the sum of its proper divisors (50662515).

231002113020013 is an equidigital number, since it uses as much as digits as its factorization.

231002113020013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50662514.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 231002113020013 its reverse (310020311200132), we get a palindrome (541022424220145).

The spelling of 231002113020013 in words is "two hundred thirty-one trillion, two billion, one hundred thirteen million, twenty thousand, thirteen".