221303331312383 has 2 divisors, whose sum is σ = 221303331312384. Its totient is φ = 221303331312382.

The previous prime is 221303331312347. The next prime is 221303331312403. The reversal of 221303331312383 is 383213133303122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221303331312383 - 2¹⁸ = 221303331050239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221303331315383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110651665656191 + 110651665656192.

It is an arithmetic number, because the mean of its divisors is an integer number (110651665656192).

Almost surely, 2^{221303331312383} is an apocalyptic number.

221303331312383 is a deficient number, since it is larger than the sum of its proper divisors (1).

221303331312383 is an equidigital number, since it uses as much as digits as its factorization.

221303331312383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 38.

The spelling of 221303331312383 in words is "two hundred twenty-one trillion, three hundred three billion, three hundred thirty-one million, three hundred twelve thousand, three hundred eighty-three".