1312551347120 has 160 divisors (see below), whose sum is σ = 3446329420800. Its totient is φ = 461512138752.

The previous prime is 1312551347113. The next prime is 1312551347143. The reversal of 1312551347120 is 217431552131.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1903601 + ... + 2499759.

It is an arithmetic number, because the mean of its divisors is an integer number (21539558880).

Almost surely, 2^{1312551347120} is an apocalyptic number.

1312551347120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1312551347120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1723164710400).

1312551347120 is an abundant number, since it is smaller than the sum of its proper divisors (2133778073680).

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

1312551347120 is a wasteful number, since it uses less digits than its factorization.

1312551347120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596287 (or 596281 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

Adding to 1312551347120 its reverse (217431552131), we get a palindrome (1529982899251).

The spelling of 1312551347120 in words is "one trillion, three hundred twelve billion, five hundred fifty-one million, three hundred forty-seven thousand, one hundred twenty".