23503130120 has 32 divisors (see below), whose sum is σ = 52908756120. Its totient is φ = 9396503040.

The previous prime is 23503130023. The next prime is 23503130141. The reversal of 23503130120 is 2103130532.

It can be written as a sum of positive squares in 4 ways, for example, as 21726170404 + 1776959716 = 147398^2 + 42154^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23503130092 and 23503130101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67691 + ... + 227130.

Almost surely, 2^23503130120 is an apocalyptic number.

23503130120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23503130120 is an abundant number, since it is smaller than the sum of its proper divisors (29405626000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23503130120 is a wasteful number, since it uses less digits than its factorization.

23503130120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296825 (or 296821 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

Adding to 23503130120 its reverse (2103130532), we get a palindrome (25606260652).

The spelling of 23503130120 in words is "twenty-three billion, five hundred three million, one hundred thirty thousand, one hundred twenty".