201221013323 has 8 divisors (see below), whose sum is σ = 219665134656. Its totient is φ = 182802109000.

The previous prime is 201221013319. The next prime is 201221013337. The reversal of 201221013323 is 323310122102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201221013323 - 2² = 201221013319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201221013295 and 201221013304.

It is not an unprimeable number, because it can be changed into a prime (201221013373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6287561 + ... + 6319482.

It is an arithmetic number, because the mean of its divisors is an integer number (27458141832).

Almost surely, 2^201221013323 is an apocalyptic number.

201221013323 is a deficient number, since it is larger than the sum of its proper divisors (18444121333).

201221013323 is a wasteful number, since it uses less digits than its factorization.

201221013323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12608505.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 201221013323 its reverse (323310122102), we get a palindrome (524531135425).

The spelling of 201221013323 in words is "two hundred one billion, two hundred twenty-one million, thirteen thousand, three hundred twenty-three".