20202200023 has 4 divisors (see below), whose sum is σ = 20898827640. Its totient is φ = 19505572408.

The previous prime is 20202200017. The next prime is 20202200069. The reversal of 20202200023 is 32000220202.

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-20202200023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20202199976 and 20202200012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202200423) 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, 348313765 + ... + 348313822.

It is an arithmetic number, because the mean of its divisors is an integer number (5224706910).

Almost surely, 2^20202200023 is an apocalyptic number.

20202200023 is a deficient number, since it is larger than the sum of its proper divisors (696627617).

20202200023 is an equidigital number, since it uses as much as digits as its factorization.

20202200023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696627616.

The product of its (nonzero) digits is 96, while the sum is 13.

Adding to 20202200023 its reverse (32000220202), we get a palindrome (52202420225).

The spelling of 20202200023 in words is "twenty billion, two hundred two million, two hundred thousand, twenty-three".