1311052531120 has 20 divisors (see below), whose sum is σ = 3048197135040. Its totient is φ = 524421012416.

The previous prime is 1311052531111. The next prime is 1311052531163. The reversal of 1311052531120 is 211352501131.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8194078240 + ... + 8194078399.

It is an arithmetic number, because the mean of its divisors is an integer number (152409856752).

Almost surely, 2^{1311052531120} is an apocalyptic number.

1311052531120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311052531120 is an abundant number, since it is smaller than the sum of its proper divisors (1737144603920).

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

1311052531120 is a wasteful number, since it uses less digits than its factorization.

1311052531120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16388156652 (or 16388156646 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

The spelling of 1311052531120 in words is "one trillion, three hundred eleven billion, fifty-two million, five hundred thirty-one thousand, one hundred twenty".