1312311213120 has 112 divisors (see below), whose sum is σ = 4170899829888. Its totient is φ = 349587517440.

The previous prime is 1312311213119. The next prime is 1312311213127. The reversal of 1312311213120 is 213121132131.

It is not an unprimeable number, because it can be changed into a prime (1312311213127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221500 + ... + 1635140.

Almost surely, 2^{1312311213120} is an apocalyptic number.

1312311213120 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 1312311213120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2085449914944).

1312311213120 is an abundant number, since it is smaller than the sum of its proper divisors (2858588616768).

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

1312311213120 is a wasteful number, since it uses less digits than its factorization.

1312311213120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414628 (or 1414618 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1312311213120 its reverse (213121132131), we get a palindrome (1525432345251).

The spelling of 1312311213120 in words is "one trillion, three hundred twelve billion, three hundred eleven million, two hundred thirteen thousand, one hundred twenty".