12402001312 has 24 divisors (see below), whose sum is σ = 24632521956. Its totient is φ = 6146122752.

The previous prime is 12402001301. The next prime is 12402001363. The reversal of 12402001312 is 21310020421.

It can be written as a sum of positive squares in 2 ways, for example, as 12275753616 + 126247696 = 110796^2 + 11236^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1711263 + ... + 1718494.

Almost surely, 2^12402001312 is an apocalyptic number.

It is an amenable number.

12402001312 is a deficient number, since it is larger than the sum of its proper divisors (12230520644).

12402001312 is a wasteful number, since it uses less digits than its factorization.

12402001312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3429880 (or 3429872 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12402001312 its reverse (21310020421), we get a palindrome (33712021733).

The spelling of 12402001312 in words is "twelve billion, four hundred two million, one thousand, three hundred twelve".