231013123 has 8 divisors (see below), whose sum is σ = 252126720. Its totient is φ = 209918280.

The previous prime is 231013103. The next prime is 231013199. The reversal of 231013123 is 321310132.

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

It is not a de Polignac number, because 231013123 - 2⁵ = 231013091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231013097 and 231013106.

It is not an unprimeable number, because it can be changed into a prime (231013103) 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, 38086 + ... + 43732.

It is an arithmetic number, because the mean of its divisors is an integer number (31515840).

Almost surely, 2^231013123 is an apocalyptic number.

231013123 is a deficient number, since it is larger than the sum of its proper divisors (21113597).

231013123 is a wasteful number, since it uses less digits than its factorization.

231013123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9377.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 231013123 is about 15199.1158624441. The cubic root of 231013123 is about 613.5908627944.

Adding to 231013123 its reverse (321310132), we get a palindrome (552323255).

The spelling of 231013123 in words is "two hundred thirty-one million, thirteen thousand, one hundred twenty-three".