1311056461216 has 24 divisors (see below), whose sum is σ = 2581596952704. Its totient is φ = 655412790720.

The previous prime is 1311056461157. The next prime is 1311056461259. The reversal of 1311056461216 is 6121646501131.

It is a happy number.

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, 3422800 + ... + 3786511.

It is an arithmetic number, because the mean of its divisors is an integer number (107566539696).

Almost surely, 2^{1311056461216} is an apocalyptic number.

1311056461216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1311056461216 is a deficient number, since it is larger than the sum of its proper divisors (1270540491488).

1311056461216 is an equidigital number, since it uses as much as digits as its factorization.

1311056461216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7215004 (or 7214996 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 1311056461216 in words is "one trillion, three hundred eleven billion, fifty-six million, four hundred sixty-one thousand, two hundred sixteen".