231551345403113 has 32 divisors (see below), whose sum is σ = 243490189916160. Its totient is φ = 220003766760960.

The previous prime is 231551345403089. The next prime is 231551345403121. The reversal of 231551345403113 is 311304543155132.

231551345403113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231551345403113 - 2⁸ = 231551345402857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231551345403163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 596161931 + ... + 596550207.

It is an arithmetic number, because the mean of its divisors is an integer number (7609068434880).

Almost surely, 2^{231551345403113} is an apocalyptic number.

It is an amenable number.

231551345403113 is a deficient number, since it is larger than the sum of its proper divisors (11938844513047).

231551345403113 is a wasteful number, since it uses less digits than its factorization.

231551345403113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391097.

The product of its (nonzero) digits is 324000, while the sum is 41.

Adding to 231551345403113 its reverse (311304543155132), we get a palindrome (542855888558245).

The spelling of 231551345403113 in words is "two hundred thirty-one trillion, five hundred fifty-one billion, three hundred forty-five million, four hundred three thousand, one hundred thirteen".