231123113 has 8 divisors (see below), whose sum is σ = 259723968. Its totient is φ = 204068304.

The previous prime is 231123107. The next prime is 231123131. The reversal of 231123113 is 311321132.

231123113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231123113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231123091 and 231123100.

It is not an unprimeable number, because it can be changed into a prime (231123413) 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, 386195 + ... + 386792.

It is an arithmetic number, because the mean of its divisors is an integer number (32465496).

Almost surely, 2^231123113 is an apocalyptic number.

231123113 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

231123113 is a deficient number, since it is larger than the sum of its proper divisors (28600855).

231123113 is a wasteful number, since it uses less digits than its factorization.

231123113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773023.

The product of its digits is 108, while the sum is 17.

The square root of 231123113 is about 15202.7337344308. The cubic root of 231123113 is about 613.6882283322.

Adding to 231123113 its reverse (311321132), we get a palindrome (542444245).

The spelling of 231123113 in words is "two hundred thirty-one million, one hundred twenty-three thousand, one hundred thirteen".