221032354445323 has 4 divisors (see below), whose sum is σ = 221648043455280. Its totient is φ = 220416665435368.

The previous prime is 221032354445303. The next prime is 221032354445351. The reversal of 221032354445323 is 323544453230122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221032354445323 - 2²⁹ = 221031817574411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221032354445323.

It is not an unprimeable number, because it can be changed into a prime (221032354445303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307844504440 + ... + 307844505157.

It is an arithmetic number, because the mean of its divisors is an integer number (55412010863820).

Almost surely, 2^{221032354445323} is an apocalyptic number.

221032354445323 is a deficient number, since it is larger than the sum of its proper divisors (615689009957).

221032354445323 is an equidigital number, since it uses as much as digits as its factorization.

221032354445323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615689009956.

The product of its (nonzero) digits is 2073600, while the sum is 43.

The spelling of 221032354445323 in words is "two hundred twenty-one trillion, thirty-two billion, three hundred fifty-four million, four hundred forty-five thousand, three hundred twenty-three".