1312053134520 has 32 divisors (see below), whose sum is σ = 3936159403920. Its totient is φ = 349880835840.

The previous prime is 1312053134503. The next prime is 1312053134531. The reversal of 1312053134520 is 254313502131.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5466887941 + ... + 5466888180.

Almost surely, 2^{1312053134520} is an apocalyptic number.

1312053134520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312053134520 is an abundant number, since it is smaller than the sum of its proper divisors (2624106269400).

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

1312053134520 is a wasteful number, since it uses less digits than its factorization.

1312053134520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10933776135 (or 10933776131 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 1312053134520 its reverse (254313502131), we get a palindrome (1566366636651).

The spelling of 1312053134520 in words is "one trillion, three hundred twelve billion, fifty-three million, one hundred thirty-four thousand, five hundred twenty".