231303123322113 has 4 divisors (see below), whose sum is σ = 308404164429488. Its totient is φ = 154202082214740.

The previous prime is 231303123322099. The next prime is 231303123322123. The reversal of 231303123322113 is 311223321303132.

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 231303123322113 - 2⁸ = 231303123321857 is a prime.

It is a super-2 number, since 2×231303123322113² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231303123322123) 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, 38550520553683 + ... + 38550520553688.

It is an arithmetic number, because the mean of its divisors is an integer number (77101041107372).

Almost surely, 2^{231303123322113} is an apocalyptic number.

It is an amenable number.

231303123322113 is a deficient number, since it is larger than the sum of its proper divisors (77101041107375).

231303123322113 is an equidigital number, since it uses as much as digits as its factorization.

231303123322113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77101041107374.

The product of its (nonzero) digits is 11664, while the sum is 30.

Adding to 231303123322113 its reverse (311223321303132), we get a palindrome (542526444625245).

The spelling of 231303123322113 in words is "two hundred thirty-one trillion, three hundred three billion, one hundred twenty-three million, three hundred twenty-two thousand, one hundred thirteen".