20100020223 has 4 divisors (see below), whose sum is σ = 26800026968. Its totient is φ = 13400013480.

The previous prime is 20100020207. The next prime is 20100020279. The reversal of 20100020223 is 32202000102.

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

It is not a de Polignac number, because 20100020223 - 2⁴ = 20100020207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20100020199 and 20100020208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100040223) 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, 3350003368 + ... + 3350003373.

It is an arithmetic number, because the mean of its divisors is an integer number (6700006742).

Almost surely, 2^20100020223 is an apocalyptic number.

20100020223 is a deficient number, since it is larger than the sum of its proper divisors (6700006745).

20100020223 is an equidigital number, since it uses as much as digits as its factorization.

20100020223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6700006744.

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 20100020223 its reverse (32202000102), we get a palindrome (52302020325).

The spelling of 20100020223 in words is "twenty billion, one hundred million, twenty thousand, two hundred twenty-three".