12130452520000 has 140 divisors (see below), whose sum is σ = 31049892054016. Its totient is φ = 4695658560000.

The previous prime is 12130452519947. The next prime is 12130452520001. The reversal of 12130452520000 is 2525403121.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (12130452520001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3651312 + ... + 6131311.

Almost surely, 2^{12130452520000} is an apocalyptic number.

12130452520000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12130452520000 is an abundant number, since it is smaller than the sum of its proper divisors (18919439534016).

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

12130452520000 is an frugal number, since it uses more digits than its factorization.

12130452520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9782686 (or 9782661 counting only the distinct ones).

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

Adding to 12130452520000 its reverse (2525403121), we get a palindrome (12132977923121).

The spelling of 12130452520000 in words is "twelve trillion, one hundred thirty billion, four hundred fifty-two million, five hundred twenty thousand".