32121323191 has 2 divisors, whose sum is σ = 32121323192. Its totient is φ = 32121323190.

The previous prime is 32121323147. The next prime is 32121323237. The reversal of 32121323191 is 19132312123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 32121323191 - 2⁹ = 32121322679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32121323491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16060661595 + 16060661596.

It is an arithmetic number, because the mean of its divisors is an integer number (16060661596).

Almost surely, 2^32121323191 is an apocalyptic number.

32121323191 is a deficient number, since it is larger than the sum of its proper divisors (1).

32121323191 is an equidigital number, since it uses as much as digits as its factorization.

32121323191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 28.

The spelling of 32121323191 in words is "thirty-two billion, one hundred twenty-one million, three hundred twenty-three thousand, one hundred ninety-one".