201020022023 has 4 divisors (see below), whose sum is σ = 201147332040. Its totient is φ = 200892712008.

The previous prime is 201020021957. The next prime is 201020022061. The reversal of 201020022023 is 320220020102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201020022023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201020021989 and 201020022007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201020022323) 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, 63652640 + ... + 63655797.

It is an arithmetic number, because the mean of its divisors is an integer number (50286833010).

Almost surely, 2^201020022023 is an apocalyptic number.

201020022023 is a deficient number, since it is larger than the sum of its proper divisors (127310017).

201020022023 is a wasteful number, since it uses less digits than its factorization.

201020022023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127310016.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 201020022023 its reverse (320220020102), we get a palindrome (521240042125).

The spelling of 201020022023 in words is "two hundred one billion, twenty million, twenty-two thousand, twenty-three".