20003223000 has 64 divisors (see below), whose sum is σ = 62410065120. Its totient is φ = 5334192000.

The previous prime is 20003222977. The next prime is 20003223041. The reversal of 20003223000 is 32230002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3330871 + ... + 3336870.

Almost surely, 2^20003223000 is an apocalyptic number.

20003223000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20003223000 is an abundant number, since it is smaller than the sum of its proper divisors (42406842120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20003223000 is a wasteful number, since it uses less digits than its factorization.

20003223000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6667765 (or 6667751 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

Adding to 20003223000 its reverse (32230002), we get a palindrome (20035453002).

The spelling of 20003223000 in words is "twenty billion, three million, two hundred twenty-three thousand".