412321131991 has 2 divisors, whose sum is σ = 412321131992. Its totient is φ = 412321131990.

The previous prime is 412321131979. The next prime is 412321132031. The reversal of 412321131991 is 199131123214.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 412321131991 - 2²¹ = 412319034839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 412321131991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (412321131941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206160565995 + 206160565996.

It is an arithmetic number, because the mean of its divisors is an integer number (206160565996).

Almost surely, 2^412321131991 is an apocalyptic number.

412321131991 is a deficient number, since it is larger than the sum of its proper divisors (1).

412321131991 is an equidigital number, since it uses as much as digits as its factorization.

412321131991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 37.

The spelling of 412321131991 in words is "four hundred twelve billion, three hundred twenty-one million, one hundred thirty-one thousand, nine hundred ninety-one".