1331366163131 has 4 divisors (see below), whose sum is σ = 1377275341200. Its totient is φ = 1285456985064.

The previous prime is 1331366163109. The next prime is 1331366163143. The reversal of 1331366163131 is 1313616631331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1331366163131 - 2³⁴ = 1314186293947 is a prime.

It is a super-2 number, since 2×1331366163131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331366163181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22954588991 + ... + 22954589048.

It is an arithmetic number, because the mean of its divisors is an integer number (344318835300).

Almost surely, 2^{1331366163131} is an apocalyptic number.

1331366163131 is a deficient number, since it is larger than the sum of its proper divisors (45909178069).

1331366163131 is an equidigital number, since it uses as much as digits as its factorization.

1331366163131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45909178068.

The product of its digits is 52488, while the sum is 38.

The spelling of 1331366163131 in words is "one trillion, three hundred thirty-one billion, three hundred sixty-six million, one hundred sixty-three thousand, one hundred thirty-one".