231103123113 has 4 divisors (see below), whose sum is σ = 308137497488. Its totient is φ = 154068748740.

The previous prime is 231103123093. The next prime is 231103123157. The reversal of 231103123113 is 311321301132.

It is a happy number.

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 not a de Polignac number, because 231103123113 - 2⁵ = 231103123081 is a prime.

It is a super-3 number, since 3×231103123113³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231103123113.

It is not an unprimeable number, because it can be changed into a prime (231103123313) 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, 38517187183 + ... + 38517187188.

It is an arithmetic number, because the mean of its divisors is an integer number (77034374372).

Almost surely, 2^231103123113 is an apocalyptic number.

It is an amenable number.

231103123113 is a deficient number, since it is larger than the sum of its proper divisors (77034374375).

231103123113 is an equidigital number, since it uses as much as digits as its factorization.

231103123113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77034374374.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 231103123113 its reverse (311321301132), we get a palindrome (542424424245).

The spelling of 231103123113 in words is "two hundred thirty-one billion, one hundred three million, one hundred twenty-three thousand, one hundred thirteen".