1312421425424 has 20 divisors (see below), whose sum is σ = 2566145107020. Its totient is φ = 650190430080.

The previous prime is 1312421425417. The next prime is 1312421425451. The reversal of 1312421425424 is 4245241242131.

It can be written as a sum of positive squares in 2 ways, for example, as 1194360465424 + 118060960000 = 1092868^2 + 343600^2 .

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, 376265867 + ... + 376269354.

It is an arithmetic number, because the mean of its divisors is an integer number (128307255351).

Almost surely, 2^{1312421425424} is an apocalyptic number.

It is an amenable number.

1312421425424 is a deficient number, since it is larger than the sum of its proper divisors (1253723681596).

1312421425424 is a wasteful number, since it uses less digits than its factorization.

1312421425424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752535338 (or 752535332 counting only the distinct ones).

The product of its digits is 61440, while the sum is 35.

Adding to 1312421425424 its reverse (4245241242131), we get a palindrome (5557662667555).

The spelling of 1312421425424 in words is "one trillion, three hundred twelve billion, four hundred twenty-one million, four hundred twenty-five thousand, four hundred twenty-four".