131223232030987 has 2 divisors, whose sum is σ = 131223232030988. Its totient is φ = 131223232030986.

The previous prime is 131223232030981. The next prime is 131223232030997. The reversal of 131223232030987 is 789030232322131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131223232030987 - 2³⁹ = 130673476217099 is a prime.

It is not a weakly prime, because it can be changed into another prime (131223232030981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65611616015493 + 65611616015494.

It is an arithmetic number, because the mean of its divisors is an integer number (65611616015494).

Almost surely, 2^{131223232030987} is an apocalyptic number.

131223232030987 is a deficient number, since it is larger than the sum of its proper divisors (1).

131223232030987 is an equidigital number, since it uses as much as digits as its factorization.

131223232030987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 46.

The spelling of 131223232030987 in words is "one hundred thirty-one trillion, two hundred twenty-three billion, two hundred thirty-two million, thirty thousand, nine hundred eighty-seven".