12345512700 has 36 divisors (see below), whose sum is σ = 35719684280. Its totient is φ = 3292136640.

The previous prime is 12345512687. The next prime is 12345512717. The reversal of 12345512700 is 721554321.

It is a super-2 number, since 2×12345512700² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20575555 + ... + 20576154.

Almost surely, 2^12345512700 is an apocalyptic number.

12345512700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12345512700 is an abundant number, since it is smaller than the sum of its proper divisors (23374171580).

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

12345512700 is a wasteful number, since it uses less digits than its factorization.

12345512700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41151726 (or 41151719 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The spelling of 12345512700 in words is "twelve billion, three hundred forty-five million, five hundred twelve thousand, seven hundred".