12520101312 has 70 divisors (see below), whose sum is σ = 37113517848. Its totient is φ = 4173365376.

The previous prime is 12520101259. The next prime is 12520101361. The reversal of 12520101312 is 21310102521.

12520101312 is a `hidden beast` number, since 1 + 2 + 520 + 10 + 131 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1202388 + ... + 1212755.

Almost surely, 2^12520101312 is an apocalyptic number.

12520101312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12520101312 is an abundant number, since it is smaller than the sum of its proper divisors (24593416536).

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

12520101312 is an equidigital number, since it uses as much as digits as its factorization.

12520101312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2415167 (or 2415148 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 12520101312 its reverse (21310102521), we get a palindrome (33830203833).

The spelling of 12520101312 in words is "twelve billion, five hundred twenty million, one hundred one thousand, three hundred twelve".