12512406020 has 12 divisors (see below), whose sum is σ = 26276052684. Its totient is φ = 5004962400.

The previous prime is 12512406017. The next prime is 12512406059. The reversal of 12512406020 is 2060421521.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5980856896 + 6531549124 = 77336^2 + 80818^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312810131 + ... + 312810170.

It is an arithmetic number, because the mean of its divisors is an integer number (2189671057).

Almost surely, 2^12512406020 is an apocalyptic number.

12512406020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12512406020 is an abundant number, since it is smaller than the sum of its proper divisors (13763646664).

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

12512406020 is a wasteful number, since it uses less digits than its factorization.

12512406020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625620310 (or 625620308 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 12512406020 its reverse (2060421521), we get a palindrome (14572827541).

The spelling of 12512406020 in words is "twelve billion, five hundred twelve million, four hundred six thousand, twenty".