1331563314371 has 2 divisors, whose sum is σ = 1331563314372. Its totient is φ = 1331563314370.

The previous prime is 1331563314349. The next prime is 1331563314449. The reversal of 1331563314371 is 1734133651331.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1331563314371 is a prime.

It is not a weakly prime, because it can be changed into another prime (1331563314871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665781657185 + 665781657186.

It is an arithmetic number, because the mean of its divisors is an integer number (665781657186).

Almost surely, 2^{1331563314371} is an apocalyptic number.

1331563314371 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331563314371 is an equidigital number, since it uses as much as digits as its factorization.

1331563314371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 204120, while the sum is 41.

The spelling of 1331563314371 in words is "one trillion, three hundred thirty-one billion, five hundred sixty-three million, three hundred fourteen thousand, three hundred seventy-one".