1331057075247 has 12 divisors (see below), whose sum is σ = 1923310991680. Its totient is φ = 887060770848.

The previous prime is 1331057075167. The next prime is 1331057075261. The reversal of 1331057075247 is 7425707501331.

1331057075247 is a `hidden beast` number, since 1 + 3 + 3 + 1 + 0 + 570 + 75 + 2 + 4 + 7 = 666.

It is not a de Polignac number, because 1331057075247 - 2¹² = 1331057071151 is a prime.

It is a super-2 number, since 2×1331057075247² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331057075297) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25857247 + ... + 25908672.

Almost surely, 2^{1331057075247} is an apocalyptic number.

1331057075247 is a deficient number, since it is larger than the sum of its proper divisors (592253916433).

1331057075247 is a wasteful number, since it uses less digits than its factorization.

1331057075247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51768782 (or 51768779 counting only the distinct ones).

The product of its (nonzero) digits is 617400, while the sum is 45.

The spelling of 1331057075247 in words is "one trillion, three hundred thirty-one billion, fifty-seven million, seventy-five thousand, two hundred forty-seven".