231013131403 has 4 divisors (see below), whose sum is σ = 231086775960. Its totient is φ = 230939486848.

The previous prime is 231013131373. The next prime is 231013131413. The reversal of 231013131403 is 304131310132.

231013131403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231013131403 - 2⁹ = 231013130891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231013131413) 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 in 3 ways as a sum of consecutive naturals, for example, 36817573 + ... + 36823846.

It is an arithmetic number, because the mean of its divisors is an integer number (57771693990).

Almost surely, 2^231013131403 is an apocalyptic number.

231013131403 is a deficient number, since it is larger than the sum of its proper divisors (73644557).

231013131403 is an equidigital number, since it uses as much as digits as its factorization.

231013131403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73644556.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 231013131403 its reverse (304131310132), we get a palindrome (535144441535).

The spelling of 231013131403 in words is "two hundred thirty-one billion, thirteen million, one hundred thirty-one thousand, four hundred three".