12400011442 has 48 divisors (see below), whose sum is σ = 23328428760. Its totient is φ = 4899750912.

The previous prime is 12400011433. The next prime is 12400011451. The reversal of 12400011442 is 24411000421.

It is an interprime number because it is at equal distance from previous prime (12400011433) and next prime (12400011451).

It can be written as a sum of positive squares in 4 ways, for example, as 6326770681 + 6073240761 = 79541^2 + 77931^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1178308 + ... + 1188784.

Almost surely, 2^12400011442 is an apocalyptic number.

12400011442 is a deficient number, since it is larger than the sum of its proper divisors (10928417318).

12400011442 is a wasteful number, since it uses less digits than its factorization.

12400011442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11435 (or 11428 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12400011442 its reverse (24411000421), we get a palindrome (36811011863).

The spelling of 12400011442 in words is "twelve billion, four hundred million, eleven thousand, four hundred forty-two".