1312004400342 has 32 divisors (see below), whose sum is σ = 2643021239040. Its totient is φ = 434166381600.

The previous prime is 1312004400337. The next prime is 1312004400353. The reversal of 1312004400342 is 2430044002131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28584103 + ... + 28629965.

It is an arithmetic number, because the mean of its divisors is an integer number (82594413720).

Almost surely, 2^{1312004400342} is an apocalyptic number.

1312004400342 is an abundant number, since it is smaller than the sum of its proper divisors (1331016838698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312004400342 is a wasteful number, since it uses less digits than its factorization.

1312004400342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80308.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1312004400342 its reverse (2430044002131), we get a palindrome (3742048402473).

The spelling of 1312004400342 in words is "one trillion, three hundred twelve billion, four million, four hundred thousand, three hundred forty-two".