32131220179987 has 2 divisors, whose sum is σ = 32131220179988. Its totient is φ = 32131220179986.

The previous prime is 32131220179973. The next prime is 32131220179999. The reversal of 32131220179987 is 78997102213123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 32131220179987 - 2³⁵ = 32096860441619 is a prime.

It is not a weakly prime, because it can be changed into another prime (32131220176987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16065610089993 + 16065610089994.

It is an arithmetic number, because the mean of its divisors is an integer number (16065610089994).

Almost surely, 2^{32131220179987} is an apocalyptic number.

32131220179987 is a deficient number, since it is larger than the sum of its proper divisors (1).

32131220179987 is an equidigital number, since it uses as much as digits as its factorization.

32131220179987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2286144, while the sum is 55.

The spelling of 32131220179987 in words is "thirty-two trillion, one hundred thirty-one billion, two hundred twenty million, one hundred seventy-nine thousand, nine hundred eighty-seven".