131202321000997 has 2 divisors, whose sum is σ = 131202321000998. Its totient is φ = 131202321000996.

The previous prime is 131202321000929. The next prime is 131202321001123. The reversal of 131202321000997 is 799000123202131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116068711643361 + 15133609357636 = 10773519^2 + 3890194^2 .

It is a cyclic number.

It is not a de Polignac number, because 131202321000997 - 2⁷ = 131202321000869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131202021000997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65601160500498 + 65601160500499.

It is an arithmetic number, because the mean of its divisors is an integer number (65601160500499).

Almost surely, 2^{131202321000997} is an apocalyptic number.

It is an amenable number.

131202321000997 is a deficient number, since it is larger than the sum of its proper divisors (1).

131202321000997 is an equidigital number, since it uses as much as digits as its factorization.

131202321000997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 40.

The spelling of 131202321000997 in words is "one hundred thirty-one trillion, two hundred two billion, three hundred twenty-one million, nine hundred ninety-seven", and thus it is an aban number.