12400132524 has 24 divisors (see below), whose sum is σ = 31159307760. Its totient is φ = 3815425344.

The previous prime is 12400132513. The next prime is 12400132541. The reversal of 12400132524 is 42523100421.

It is a super-2 number, since 2×12400132524² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12400132494 and 12400132503.

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, 39743859 + ... + 39744170.

It is an arithmetic number, because the mean of its divisors is an integer number (1298304490).

Almost surely, 2^12400132524 is an apocalyptic number.

It is an amenable number.

12400132524 is an abundant number, since it is smaller than the sum of its proper divisors (18759175236).

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

12400132524 is a wasteful number, since it uses less digits than its factorization.

12400132524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79488049 (or 79488047 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 12400132524 its reverse (42523100421), we get a palindrome (54923232945).

The spelling of 12400132524 in words is "twelve billion, four hundred million, one hundred thirty-two thousand, five hundred twenty-four".