201220020323 has 12 divisors (see below), whose sum is σ = 234083588112. Its totient is φ = 172465962480.

The previous prime is 201220020301. The next prime is 201220020341. The reversal of 201220020323 is 323020022102.

It is a de Polignac number, because none of the positive numbers 2^k-201220020323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201220020383) 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, 1061333 + ... + 1236473.

It is an arithmetic number, because the mean of its divisors is an integer number (19506965676).

Almost surely, 2^201220020323 is an apocalyptic number.

201220020323 is a deficient number, since it is larger than the sum of its proper divisors (32863567789).

201220020323 is a wasteful number, since it uses less digits than its factorization.

201220020323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198602 (or 198595 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 201220020323 its reverse (323020022102), we get a palindrome (524240042425).

The spelling of 201220020323 in words is "two hundred one billion, two hundred twenty million, twenty thousand, three hundred twenty-three".