202120101323 has 12 divisors (see below), whose sum is σ = 236337547320. Its totient is φ = 172348146432.

The previous prime is 202120101251. The next prime is 202120101341. The reversal of 202120101323 is 323101021202.

It is not a de Polignac number, because 202120101323 - 2¹⁸ = 202119839179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202120101373) 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, 10676813 + ... + 10695726.

It is an arithmetic number, because the mean of its divisors is an integer number (19694795610).

Almost surely, 2^202120101323 is an apocalyptic number.

202120101323 is a deficient number, since it is larger than the sum of its proper divisors (34217445997).

202120101323 is a wasteful number, since it uses less digits than its factorization.

202120101323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21372746 (or 21372739 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 202120101323 its reverse (323101021202), we get a palindrome (525221122525).

The spelling of 202120101323 in words is "two hundred two billion, one hundred twenty million, one hundred one thousand, three hundred twenty-three".