2123003020 has 48 divisors (see below), whose sum is σ = 4588129728. Its totient is φ = 824567040.

The previous prime is 2123002997. The next prime is 2123003053. The reversal of 2123003020 is 203003212.

It is a happy 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, 397689 + ... + 402991.

It is an arithmetic number, because the mean of its divisors is an integer number (95586036).

Almost surely, 2^2123003020 is an apocalyptic number.

2123003020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2123003020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2294064864).

2123003020 is an abundant number, since it is smaller than the sum of its proper divisors (2465126708).

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

2123003020 is a wasteful number, since it uses less digits than its factorization.

2123003020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5890 (or 5888 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 2123003020 is about 46076.0569059463. The cubic root of 2123003020 is about 1285.2379398596.

Adding to 2123003020 its reverse (203003212), we get a palindrome (2326006232).

The spelling of 2123003020 in words is "two billion, one hundred twenty-three million, three thousand, twenty".