113123112231 has 8 divisors (see below), whose sum is σ = 150909917184. Its totient is φ = 75375857720.

The previous prime is 113123112197. The next prime is 113123112233. The reversal of 113123112231 is 132211321311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 113123112231 - 2⁹ = 113123111719 is a prime.

It is a super-2 number, since 2×113123112231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113123112198 and 113123112207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113123112233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9880935 + ... + 9892376.

It is an arithmetic number, because the mean of its divisors is an integer number (18863739648).

Almost surely, 2^113123112231 is an apocalyptic number.

113123112231 is a deficient number, since it is larger than the sum of its proper divisors (37786804953).

113123112231 is a wasteful number, since it uses less digits than its factorization.

113123112231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19775221.

The product of its digits is 216, while the sum is 21.

Adding to 113123112231 its reverse (132211321311), we get a palindrome (245334433542).

The spelling of 113123112231 in words is "one hundred thirteen billion, one hundred twenty-three million, one hundred twelve thousand, two hundred thirty-one".