12310556409 has 36 divisors (see below), whose sum is σ = 19710814656. Its totient is φ = 7388396928.

The previous prime is 12310556389. The next prime is 12310556411. The reversal of 12310556409 is 90465501321.

12310556409 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 0 + 5 + 5 + 640 + 9 = 666.

It is not a de Polignac number, because 12310556409 - 2⁷ = 12310556281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12310556429) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 43069 + ... + 162714.

Almost surely, 2^12310556409 is an apocalyptic number.

It is an amenable number.

12310556409 is a deficient number, since it is larger than the sum of its proper divisors (7400258247).

12310556409 is a wasteful number, since it uses less digits than its factorization.

12310556409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205846 (or 205826 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 12310556409 in words is "twelve billion, three hundred ten million, five hundred fifty-six thousand, four hundred nine".