12125456313 has 4 divisors (see below), whose sum is σ = 16167275088. Its totient is φ = 8083637540.

The previous prime is 12125456303. The next prime is 12125456381. The reversal of 12125456313 is 31365452121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12125456313 - 2⁴ = 12125456297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12125456303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2020909383 + ... + 2020909388.

It is an arithmetic number, because the mean of its divisors is an integer number (4041818772).

Almost surely, 2^12125456313 is an apocalyptic number.

It is an amenable number.

12125456313 is a deficient number, since it is larger than the sum of its proper divisors (4041818775).

12125456313 is an equidigital number, since it uses as much as digits as its factorization.

12125456313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4041818774.

The product of its digits is 21600, while the sum is 33.

The spelling of 12125456313 in words is "twelve billion, one hundred twenty-five million, four hundred fifty-six thousand, three hundred thirteen".