12125213113 has 16 divisors (see below), whose sum is σ = 13614612480. Its totient is φ = 10721422656.

The previous prime is 12125213099. The next prime is 12125213137. The reversal of 12125213113 is 31131252121.

It is a cyclic number.

It is not a de Polignac number, because 12125213113 - 2⁹ = 12125212601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12125213813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78745 + ... + 174502.

It is an arithmetic number, because the mean of its divisors is an integer number (850913280).

Almost surely, 2^12125213113 is an apocalyptic number.

12125213113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12125213113 is a deficient number, since it is larger than the sum of its proper divisors (1489399367).

12125213113 is a wasteful number, since it uses less digits than its factorization.

12125213113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253416.

The product of its digits is 360, while the sum is 22.

Adding to 12125213113 its reverse (31131252121), we get a palindrome (43256465234).

The spelling of 12125213113 in words is "twelve billion, one hundred twenty-five million, two hundred thirteen thousand, one hundred thirteen".