1312551243352 has 8 divisors (see below), whose sum is σ = 2461033581300. Its totient is φ = 656275621672.

The previous prime is 1312551243313. The next prime is 1312551243371. The reversal of 1312551243352 is 2533421552131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1312551243352² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82034452702 + ... + 82034452717.

Almost surely, 2^{1312551243352} is an apocalyptic number.

It is an amenable number.

1312551243352 is a deficient number, since it is larger than the sum of its proper divisors (1148482337948).

1312551243352 is a wasteful number, since it uses less digits than its factorization.

1312551243352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164068905425 (or 164068905421 counting only the distinct ones).

The product of its digits is 108000, while the sum is 37.

Adding to 1312551243352 its reverse (2533421552131), we get a palindrome (3845972795483).

The spelling of 1312551243352 in words is "one trillion, three hundred twelve billion, five hundred fifty-one million, two hundred forty-three thousand, three hundred fifty-two".