1312311100000 has 72 divisors (see below), whose sum is σ = 3229309154736. Its totient is φ = 524924400000.

The previous prime is 1312311099973. The next prime is 1312311100019. The reversal of 1312311100000 is 11132131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6461556 + ... + 6661555.

It is an arithmetic number, because the mean of its divisors is an integer number (44851516038).

Almost surely, 2^{1312311100000} is an apocalyptic number.

1312311100000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312311100000 is an abundant number, since it is smaller than the sum of its proper divisors (1916998054736).

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

1312311100000 is an frugal number, since it uses more digits than its factorization.

1312311100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13123146 (or 13123118 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 1312311100000 its reverse (11132131), we get a palindrome (1312322232131).

The spelling of 1312311100000 in words is "one trillion, three hundred twelve billion, three hundred eleven million, one hundred thousand".