2123351300 has 54 divisors (see below), whose sum is σ = 5359957722. Its totient is φ = 728004480.

The previous prime is 2123351299. The next prime is 2123351303. The reversal of 2123351300 is 31533212.

It can be written as a sum of positive squares in 3 ways, for example, as 181010116 + 1942341184 = 13454^2 + 44072^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (2123351303) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 211769 + ... + 221568.

Almost surely, 2^2123351300 is an apocalyptic number.

2123351300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123351300 is an abundant number, since it is smaller than the sum of its proper divisors (3236606422).

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

2123351300 is a wasteful number, since it uses less digits than its factorization.

2123351300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433365 (or 433351 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 2123351300 is about 46079.8361542226. The cubic root of 2123351300 is about 1285.3082173848.

Adding to 2123351300 its reverse (31533212), we get a palindrome (2154884512).

The spelling of 2123351300 in words is "two billion, one hundred twenty-three million, three hundred fifty-one thousand, three hundred".