1311045116444 has 24 divisors (see below), whose sum is σ = 2625380227680. Its totient is φ = 561171479616.

The previous prime is 1311045116413. The next prime is 1311045116461. The reversal of 1311045116444 is 4446115401131.

It is a happy number.

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, 29352239 + ... + 29396870.

It is an arithmetic number, because the mean of its divisors is an integer number (109390842820).

Almost surely, 2^{1311045116444} is an apocalyptic number.

1311045116444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1311045116444 is an abundant number, since it is smaller than the sum of its proper divisors (1314335111236).

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

1311045116444 is a wasteful number, since it uses less digits than its factorization.

1311045116444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58749917 (or 58749915 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 1311045116444 in words is "one trillion, three hundred eleven billion, forty-five million, one hundred sixteen thousand, four hundred forty-four".