20030023100 has 18 divisors (see below), whose sum is σ = 43465150344. Its totient is φ = 8012009200.

The previous prime is 20030023099. The next prime is 20030023141. The reversal of 20030023100 is 132003002.

It is a super-2 number, since 2×20030023100² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 100150016 + ... + 100150215.

Almost surely, 2^20030023100 is an apocalyptic number.

20030023100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20030023100 is an abundant number, since it is smaller than the sum of its proper divisors (23435127244).

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

20030023100 is a wasteful number, since it uses less digits than its factorization.

20030023100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200300245 (or 200300238 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

Adding to 20030023100 its reverse (132003002), we get a palindrome (20162026102).

The spelling of 20030023100 in words is "twenty billion, thirty million, twenty-three thousand, one hundred".