12130452520 has 32 divisors (see below), whose sum is σ = 28173957120. Its totient is φ = 4695658560.

The previous prime is 12130452487. The next prime is 12130452557. The reversal of 12130452520 is 2525403121.

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, 4890072 + ... + 4892551.

It is an arithmetic number, because the mean of its divisors is an integer number (880436160).

Almost surely, 2^12130452520 is an apocalyptic number.

12130452520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12130452520 is an abundant number, since it is smaller than the sum of its proper divisors (16043504600).

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

12130452520 is a wasteful number, since it uses less digits than its factorization.

12130452520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9782665 (or 9782661 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 12130452520 its reverse (2525403121), we get a palindrome (14655855641).

The spelling of 12130452520 in words is "twelve billion, one hundred thirty million, four hundred fifty-two thousand, five hundred twenty".