231032123 has 4 divisors (see below), whose sum is σ = 264036720. Its totient is φ = 198027528.

The previous prime is 231032101. The next prime is 231032161. The reversal of 231032123 is 321230132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231032123 - 2¹⁶ = 230966587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231032323) 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, 16502288 + ... + 16502301.

It is an arithmetic number, because the mean of its divisors is an integer number (66009180).

Almost surely, 2^231032123 is an apocalyptic number.

231032123 is a deficient number, since it is larger than the sum of its proper divisors (33004597).

231032123 is an equidigital number, since it uses as much as digits as its factorization.

231032123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33004596.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 231032123 is about 15199.7408859493. The cubic root of 231032123 is about 613.6076842151.

Adding to 231032123 its reverse (321230132), we get a palindrome (552262255).

The spelling of 231032123 in words is "two hundred thirty-one million, thirty-two thousand, one hundred twenty-three".