23513012 has 12 divisors (see below), whose sum is σ = 41182596. Its totient is φ = 11746560.

The previous prime is 23513011. The next prime is 23513027. The reversal of 23513012 is 21031532.

It can be written as a sum of positive squares in 2 ways, for example, as 20394256 + 3118756 = 4516^2 + 1766^2 .

It is a super-3 number, since 3×23513012³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23513011) 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, 6212 + ... + 9252.

It is an arithmetic number, because the mean of its divisors is an integer number (3431883).

Almost surely, 2^23513012 is an apocalyptic number.

It is an amenable number.

23513012 is a deficient number, since it is larger than the sum of its proper divisors (17669584).

23513012 is a wasteful number, since it uses less digits than its factorization.

23513012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4978 (or 4976 counting only the distinct ones).

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

The square root of 23513012 is about 4849.0217570145. The cubic root of 23513012 is about 286.4855721795.

Adding to 23513012 its reverse (21031532), we get a palindrome (44544544).

The spelling of 23513012 in words is "twenty-three million, five hundred thirteen thousand, twelve".