1311311089776 has 40 divisors (see below), whose sum is σ = 3389585981184. Its totient is φ = 436841460160.

The previous prime is 1311311089729. The next prime is 1311311089799. The reversal of 1311311089776 is 6779801131131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8114040 + ... + 8274071.

Almost surely, 2^{1311311089776} is an apocalyptic number.

1311311089776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1311311089776 is an abundant number, since it is smaller than the sum of its proper divisors (2078274891408).

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

1311311089776 is a wasteful number, since it uses less digits than its factorization.

1311311089776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16389789 (or 16389783 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 48.

The spelling of 1311311089776 in words is "one trillion, three hundred eleven billion, three hundred eleven million, eighty-nine thousand, seven hundred seventy-six".