23512130 has 16 divisors (see below), whose sum is σ = 42449400. Its totient is φ = 9376512.

The previous prime is 23512129. The next prime is 23512133. The reversal of 23512130 is 3121532.

It can be written as a sum of positive squares in 4 ways, for example, as 20948929 + 2563201 = 4577^2 + 1601^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23512099 and 23512108.

It is not an unprimeable number, because it can be changed into a prime (23512133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122 + ... + 6858.

Almost surely, 2^23512130 is an apocalyptic number.

23512130 is a deficient number, since it is larger than the sum of its proper divisors (18937270).

23512130 is a wasteful number, since it uses less digits than its factorization.

23512130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7093.

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

The square root of 23512130 is about 4848.9308099828. The cubic root of 23512130 is about 286.4819900008.

Adding to 23512130 its reverse (3121532), we get a palindrome (26633662).

The spelling of 23512130 in words is "twenty-three million, five hundred twelve thousand, one hundred thirty".