201000122023 has 4 divisors (see below), whose sum is σ = 201710370088. Its totient is φ = 200289873960.

The previous prime is 201000122021. The next prime is 201000122033. The reversal of 201000122023 is 320221000102.

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

It is a cyclic number.

It is not a de Polignac number, because 201000122023 - 2¹ = 201000122021 is a prime.

It is a super-2 number, since 2×201000122023² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201000121994 and 201000122012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201000122021) 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, 355123608 + ... + 355124173.

It is an arithmetic number, because the mean of its divisors is an integer number (50427592522).

Almost surely, 2^201000122023 is an apocalyptic number.

201000122023 is a deficient number, since it is larger than the sum of its proper divisors (710248065).

201000122023 is an equidigital number, since it uses as much as digits as its factorization.

201000122023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710248064.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 201000122023 its reverse (320221000102), we get a palindrome (521221122125).

The spelling of 201000122023 in words is "two hundred one billion, one hundred twenty-two thousand, twenty-three".