23531012 has 12 divisors (see below), whose sum is σ = 41564880. Its totient is φ = 11655336.

The previous prime is 23530981. The next prime is 23531017. The reversal of 23531012 is 21013532.

It is not an unprimeable number, because it can be changed into a prime (23531017) 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, 27062 + ... + 27917.

It is an arithmetic number, because the mean of its divisors is an integer number (3463740).

Almost surely, 2^23531012 is an apocalyptic number.

It is an amenable number.

23531012 is a deficient number, since it is larger than the sum of its proper divisors (18033868).

23531012 is a wasteful number, since it uses less digits than its factorization.

23531012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55090 (or 55088 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 23531012 is about 4850.8774464008. The cubic root of 23531012 is about 286.5586583069.

Adding to 23531012 its reverse (21013532), we get a palindrome (44544544).

The spelling of 23531012 in words is "twenty-three million, five hundred thirty-one thousand, twelve".