12402180913 has 2 divisors, whose sum is σ = 12402180914. Its totient is φ = 12402180912.

The previous prime is 12402180899. The next prime is 12402180937. The reversal of 12402180913 is 31908120421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8922124849 + 3480056064 = 94457^2 + 58992^2 .

It is a cyclic number.

It is not a de Polignac number, because 12402180913 - 2²⁹ = 11865310001 is a prime.

It is not a weakly prime, because it can be changed into another prime (12402189913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6201090456 + 6201090457.

It is an arithmetic number, because the mean of its divisors is an integer number (6201090457).

Almost surely, 2^12402180913 is an apocalyptic number.

It is an amenable number.

12402180913 is a deficient number, since it is larger than the sum of its proper divisors (1).

12402180913 is an equidigital number, since it uses as much as digits as its factorization.

12402180913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 12402180913 in words is "twelve billion, four hundred two million, one hundred eighty thousand, nine hundred thirteen".