12400965901 has 4 divisors (see below), whose sum is σ = 12401195904. Its totient is φ = 12400735900.

The previous prime is 12400965887. The next prime is 12400965919. The reversal of 12400965901 is 10956900421.

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 a cyclic number.

It is not a de Polignac number, because 12400965901 - 2²¹ = 12398868749 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 (12400965601) 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, 14436 + ... + 158146.

It is an arithmetic number, because the mean of its divisors is an integer number (3100298976).

Almost surely, 2^12400965901 is an apocalyptic number.

It is an amenable number.

12400965901 is a deficient number, since it is larger than the sum of its proper divisors (230003).

12400965901 is an equidigital number, since it uses as much as digits as its factorization.

12400965901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230002.

The product of its (nonzero) digits is 19440, while the sum is 37.

The spelling of 12400965901 in words is "twelve billion, four hundred million, nine hundred sixty-five thousand, nine hundred one".