131322021131999 has 2 divisors, whose sum is σ = 131322021132000. Its totient is φ = 131322021131998.

The previous prime is 131322021131993. The next prime is 131322021132013. The reversal of 131322021131999 is 999131120223131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131322021131999 - 2⁴⁰ = 130222509504223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131322021131993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65661010565999 + 65661010566000.

It is an arithmetic number, because the mean of its divisors is an integer number (65661010566000).

Almost surely, 2^{131322021131999} is an apocalyptic number.

131322021131999 is a deficient number, since it is larger than the sum of its proper divisors (1).

131322021131999 is an equidigital number, since it uses as much as digits as its factorization.

131322021131999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 157464, while the sum is 47.

The spelling of 131322021131999 in words is "one hundred thirty-one trillion, three hundred twenty-two billion, twenty-one million, one hundred thirty-one thousand, nine hundred ninety-nine".