2123023100 has 36 divisors (see below), whose sum is σ = 5025777288. Its totient is φ = 772008000.

The previous prime is 2123023093. The next prime is 2123023117. The reversal of 2123023100 is 13203212.

It is a happy number.

It is a super-2 number, since 2×2123023100² = 9014454166267220000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 963911 + ... + 966110.

Almost surely, 2^2123023100 is an apocalyptic number.

2123023100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123023100 is an abundant number, since it is smaller than the sum of its proper divisors (2902754188).

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

2123023100 is a wasteful number, since it uses less digits than its factorization.

2123023100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1930046 (or 1930039 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2123023100 is about 46076.2748060214. The cubic root of 2123023100 is about 1285.2419919023.

Adding to 2123023100 its reverse (13203212), we get a palindrome (2136226312).

The spelling of 2123023100 in words is "two billion, one hundred twenty-three million, twenty-three thousand, one hundred".