23231005 has 16 divisors (see below), whose sum is σ = 32722560. Its totient is φ = 15498432.

The previous prime is 23231003. The next prime is 23231011. The reversal of 23231005 is 50013232.

It is a cyclic number.

It is not a de Polignac number, because 23231005 - 2¹ = 23231003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23231005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23231003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7675 + ... + 10264.

It is an arithmetic number, because the mean of its divisors is an integer number (2045160).

Almost surely, 2^23231005 is an apocalyptic number.

It is an amenable number.

23231005 is a deficient number, since it is larger than the sum of its proper divisors (9491555).

23231005 is a wasteful number, since it uses less digits than its factorization.

23231005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17988.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 23231005 is about 4819.8552882841. The cubic root of 23231005 is about 285.3356259399.

Adding to 23231005 its reverse (50013232), we get a palindrome (73244237).

The spelling of 23231005 in words is "twenty-three million, two hundred thirty-one thousand, five".