20023320225 has 12 divisors (see below), whose sum is σ = 33105222896. Its totient is φ = 10679104080.

The previous prime is 20023320223. The next prime is 20023320227. The reversal of 20023320225 is 52202332002.

It is an interprime number because it is at equal distance from previous prime (20023320223) and next prime (20023320227).

It is not a de Polignac number, because 20023320225 - 2¹ = 20023320223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20023320223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133488727 + ... + 133488876.

Almost surely, 2^20023320225 is an apocalyptic number.

20023320225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20023320225 is a deficient number, since it is larger than the sum of its proper divisors (13081902671).

20023320225 is a wasteful number, since it uses less digits than its factorization.

20023320225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266977616 (or 266977611 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

Adding to 20023320225 its reverse (52202332002), we get a palindrome (72225652227).

The spelling of 20023320225 in words is "twenty billion, twenty-three million, three hundred twenty thousand, two hundred twenty-five".