12430252500 has 120 divisors (see below), whose sum is σ = 36347240160. Its totient is φ = 3305232000.

The previous prime is 12430252493. The next prime is 12430252517. The reversal of 12430252500 is 525203421.

It is a super-2 number, since 2×12430252500² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2840314 + ... + 2844686.

It is an arithmetic number, because the mean of its divisors is an integer number (302893668).

Almost surely, 2^12430252500 is an apocalyptic number.

12430252500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12430252500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18173620080).

12430252500 is an abundant number, since it is smaller than the sum of its proper divisors (23916987660).

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

12430252500 is a wasteful number, since it uses less digits than its factorization.

12430252500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4779 (or 4762 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 12430252500 its reverse (525203421), we get a palindrome (12955455921).

The spelling of 12430252500 in words is "twelve billion, four hundred thirty million, two hundred fifty-two thousand, five hundred".