1312253121404 has 24 divisors (see below), whose sum is σ = 2297902788720. Its totient is φ = 655709606784.

The previous prime is 1312253121379. The next prime is 1312253121407. The reversal of 1312253121404 is 4041213522131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312253121407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47303522 + ... + 47331254.

It is an arithmetic number, because the mean of its divisors is an integer number (95745949530).

Almost surely, 2^{1312253121404} is an apocalyptic number.

It is an amenable number.

1312253121404 is a deficient number, since it is larger than the sum of its proper divisors (985649667316).

1312253121404 is a wasteful number, since it uses less digits than its factorization.

1312253121404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34829 (or 34827 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 1312253121404 its reverse (4041213522131), we get a palindrome (5353466643535).

The spelling of 1312253121404 in words is "one trillion, three hundred twelve billion, two hundred fifty-three million, one hundred twenty-one thousand, four hundred four".