231102000013 has 4 divisors (see below), whose sum is σ = 231102990748. Its totient is φ = 231101009280.

The previous prime is 231102000011. The next prime is 231102000023. The reversal of 231102000013 is 310000201132.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 137858491849 + 93243508164 = 371293^2 + 305358^2 .

It is a cyclic number.

It is not a de Polignac number, because 231102000013 - 2¹ = 231102000011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231101999957 and 231102000002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231102000011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68395 + ... + 683287.

It is an arithmetic number, because the mean of its divisors is an integer number (57775747687).

Almost surely, 2^231102000013 is an apocalyptic number.

It is an amenable number.

231102000013 is a deficient number, since it is larger than the sum of its proper divisors (990735).

231102000013 is an equidigital number, since it uses as much as digits as its factorization.

231102000013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990734.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 231102000013 its reverse (310000201132), we get a palindrome (541102201145).

The spelling of 231102000013 in words is "two hundred thirty-one billion, one hundred two million, thirteen", and thus it is an aban number.