131223232030997 has 2 divisors, whose sum is σ = 131223232030998. Its totient is φ = 131223232030996.

The previous prime is 131223232030987. The next prime is 131223232031033. The reversal of 131223232030997 is 799030232322131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101241409010641 + 29981823020356 = 10061879^2 + 5475566^2 .

It is a cyclic number.

It is not a de Polignac number, because 131223232030997 - 2⁴ = 131223232030981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131223232030987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65611616015498 + 65611616015499.

It is an arithmetic number, because the mean of its divisors is an integer number (65611616015499).

Almost surely, 2^{131223232030997} is an apocalyptic number.

It is an amenable number.

131223232030997 is a deficient number, since it is larger than the sum of its proper divisors (1).

131223232030997 is an equidigital number, since it uses as much as digits as its factorization.

131223232030997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 734832, while the sum is 47.

The spelling of 131223232030997 in words is "one hundred thirty-one trillion, two hundred twenty-three billion, two hundred thirty-two million, thirty thousand, nine hundred ninety-seven".