231326623 has 8 divisors (see below), whose sum is σ = 253083600. Its totient is φ = 209690880.

The previous prime is 231326611. The next prime is 231326639. The reversal of 231326623 is 326623132.

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 231326623 - 2²⁵ = 197772191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231326591 and 231326600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231326423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26290 + ... + 33967.

It is an arithmetic number, because the mean of its divisors is an integer number (31635450).

Almost surely, 2^231326623 is an apocalyptic number.

231326623 is a deficient number, since it is larger than the sum of its proper divisors (21756977).

231326623 is a wasteful number, since it uses less digits than its factorization.

231326623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60617.

The product of its digits is 7776, while the sum is 28.

The square root of 231326623 is about 15209.4254658090. The cubic root of 231326623 is about 613.8682983835.

Adding to 231326623 its reverse (326623132), we get a palindrome (557949755).

The spelling of 231326623 in words is "two hundred thirty-one million, three hundred twenty-six thousand, six hundred twenty-three".