221001310230323 has 12 divisors (see below), whose sum is σ = 257105849928840. Its totient is φ = 189412973229312.

The previous prime is 221001310230313. The next prime is 221001310230347. The reversal of 221001310230323 is 323032013100122.

It is a de Polignac number, because none of the positive numbers 2^k-221001310230323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221001310230313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198501761 + ... + 199612002.

It is an arithmetic number, because the mean of its divisors is an integer number (21425487494070).

Almost surely, 2^{221001310230323} is an apocalyptic number.

221001310230323 is a deficient number, since it is larger than the sum of its proper divisors (36104539698517).

221001310230323 is a wasteful number, since it uses less digits than its factorization.

221001310230323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398125106 (or 398125099 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 221001310230323 its reverse (323032013100122), we get a palindrome (544033323330445).

The spelling of 221001310230323 in words is "two hundred twenty-one trillion, one billion, three hundred ten million, two hundred thirty thousand, three hundred twenty-three".