12371661397 has 16 divisors (see below), whose sum is σ = 12680845632. Its totient is φ = 12067315200.

The previous prime is 12371661373. The next prime is 12371661403. The reversal of 12371661397 is 79316617321.

It is a cyclic number.

It is not a de Polignac number, because 12371661397 - 2¹⁵ = 12371628629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12371761397) 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, 2221138 + ... + 2226700.

It is an arithmetic number, because the mean of its divisors is an integer number (792552852).

Almost surely, 2^12371661397 is an apocalyptic number.

It is an amenable number.

12371661397 is a deficient number, since it is larger than the sum of its proper divisors (309184235).

12371661397 is a wasteful number, since it uses less digits than its factorization.

12371661397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5988.

The product of its digits is 285768, while the sum is 46.

The spelling of 12371661397 in words is "twelve billion, three hundred seventy-one million, six hundred sixty-one thousand, three hundred ninety-seven".