221232431383 has 2 divisors, whose sum is σ = 221232431384. Its totient is φ = 221232431382.

The previous prime is 221232431377. The next prime is 221232431437. The reversal of 221232431383 is 383134232122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221232431383 - 2⁹ = 221232430871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221232432383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110616215691 + 110616215692.

It is an arithmetic number, because the mean of its divisors is an integer number (110616215692).

Almost surely, 2^221232431383 is an apocalyptic number.

221232431383 is a deficient number, since it is larger than the sum of its proper divisors (1).

221232431383 is an equidigital number, since it uses as much as digits as its factorization.

221232431383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 34.

The spelling of 221232431383 in words is "two hundred twenty-one billion, two hundred thirty-two million, four hundred thirty-one thousand, three hundred eighty-three".