2121054300 has 216 divisors, whose sum is σ = 7092264816. Its totient is φ = 528353280.

The previous prime is 2121054253. The next prime is 2121054323. The reversal of 2121054300 is 34501212.

2121054300 is a `hidden beast` number, since 2 + 121 + 0 + 543 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2401659 + ... + 2402541.

Almost surely, 2^2121054300 is an apocalyptic number.

2121054300 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 2121054300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3546132408).

2121054300 is an abundant number, since it is smaller than the sum of its proper divisors (4971210516).

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

2121054300 is a wasteful number, since it uses less digits than its factorization.

2121054300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077 (or 1067 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2121054300 is about 46054.9052762027. The cubic root of 2121054300 is about 1284.8445763762.

Adding to 2121054300 its reverse (34501212), we get a palindrome (2155555512).

The spelling of 2121054300 in words is "two billion, one hundred twenty-one million, fifty-four thousand, three hundred".