12512153100 has 72 divisors (see below), whose sum is σ = 37180290448. Its totient is φ = 3246393600.

The previous prime is 12512153077. The next prime is 12512153107. The reversal of 12512153100 is 135121521.

It is a super-2 number, since 2×12512153100² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12512153107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 552511 + ... + 574710.

Almost surely, 2^12512153100 is an apocalyptic number.

12512153100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12512153100 is an abundant number, since it is smaller than the sum of its proper divisors (24668137348).

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

12512153100 is a wasteful number, since it uses less digits than its factorization.

12512153100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127275 (or 1127268 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

Adding to 12512153100 its reverse (135121521), we get a palindrome (12647274621).

The spelling of 12512153100 in words is "twelve billion, five hundred twelve million, one hundred fifty-three thousand, one hundred".