2100121324 has 24 divisors (see below), whose sum is σ = 4201449728. Its totient is φ = 899793360.

The previous prime is 2100121307. The next prime is 2100121337. The reversal of 2100121324 is 4231210012.

It is a junction number, because it is equal to n+sod(n) for n = 2100121298 and 2100121307.

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 7 ways as a sum of consecutive naturals, for example, 113569 + ... + 130759.

Almost surely, 2^2100121324 is an apocalyptic number.

It is an amenable number.

2100121324 is an abundant number, since it is smaller than the sum of its proper divisors (2101328404).

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

2100121324 is a wasteful number, since it uses less digits than its factorization.

2100121324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21565 (or 21563 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2100121324 is about 45827.0806838053. The cubic root of 2100121324 is about 1280.6038256216.

Adding to 2100121324 its reverse (4231210012), we get a palindrome (6331331336).

The spelling of 2100121324 in words is "two billion, one hundred million, one hundred twenty-one thousand, three hundred twenty-four".