231032323 has 2 divisors, whose sum is σ = 231032324. Its totient is φ = 231032322.

The previous prime is 231032311. The next prime is 231032327. The reversal of 231032323 is 323230132.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231032323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231032323.

It is not a weakly prime, because it can be changed into another prime (231032327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115516161 + 115516162.

It is an arithmetic number, because the mean of its divisors is an integer number (115516162).

Almost surely, 2^231032323 is an apocalyptic number.

231032323 is a deficient number, since it is larger than the sum of its proper divisors (1).

231032323 is an equidigital number, since it uses as much as digits as its factorization.

231032323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 231032323 is about 15199.7474650074. The cubic root of 231032323 is about 613.6078612778.

Adding to 231032323 its reverse (323230132), we get a palindrome (554262455).

The spelling of 231032323 in words is "two hundred thirty-one million, thirty-two thousand, three hundred twenty-three".