12611311507 has 8 divisors (see below), whose sum is σ = 12664033200. Its totient is φ = 12558618624.

The previous prime is 12611311477. The next prime is 12611311511. The reversal of 12611311507 is 70511311621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12611311507 - 2²⁷ = 12477093779 is a prime.

It is a super-2 number, since 2×12611311507² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12611311547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1560844 + ... + 1568902.

It is an arithmetic number, because the mean of its divisors is an integer number (1583004150).

Almost surely, 2^12611311507 is an apocalyptic number.

12611311507 is a deficient number, since it is larger than the sum of its proper divisors (52721693).

12611311507 is an equidigital number, since it uses as much as digits as its factorization.

12611311507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14405.

The product of its (nonzero) digits is 1260, while the sum is 28.

The spelling of 12611311507 in words is "twelve billion, six hundred eleven million, three hundred eleven thousand, five hundred seven".