12125452400 has 30 divisors (see below), whose sum is σ = 29131400352. Its totient is φ = 4850180800.

The previous prime is 12125452399. The next prime is 12125452439. The reversal of 12125452400 is 425452121.

It is a self number, because there is not a number n which added to its sum of digits gives 12125452400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15156416 + ... + 15157215.

Almost surely, 2^12125452400 is an apocalyptic number.

12125452400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12125452400 is an abundant number, since it is smaller than the sum of its proper divisors (17005947952).

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

12125452400 is a wasteful number, since it uses less digits than its factorization.

12125452400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30313649 (or 30313638 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The spelling of 12125452400 in words is "twelve billion, one hundred twenty-five million, four hundred fifty-two thousand, four hundred".