12571373361 has 4 divisors (see below), whose sum is σ = 16761831152. Its totient is φ = 8380915572.

The previous prime is 12571373341. The next prime is 12571373371. The reversal of 12571373361 is 16337317521.

It is a happy number.

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 not a de Polignac number, because 12571373361 - 2⁵ = 12571373329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12571373341) 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, 2095228891 + ... + 2095228896.

It is an arithmetic number, because the mean of its divisors is an integer number (4190457788).

Almost surely, 2^12571373361 is an apocalyptic number.

It is an amenable number.

12571373361 is a deficient number, since it is larger than the sum of its proper divisors (4190457791).

12571373361 is an equidigital number, since it uses as much as digits as its factorization.

12571373361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4190457790.

The product of its digits is 79380, while the sum is 39.

The spelling of 12571373361 in words is "twelve billion, five hundred seventy-one million, three hundred seventy-three thousand, three hundred sixty-one".