2121343044 has 24 divisors (see below), whose sum is σ = 4951762368. Its totient is φ = 706834080.

The previous prime is 2121343039. The next prime is 2121343093. The reversal of 2121343044 is 4403431212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2272 + ... + 65175.

It is an arithmetic number, because the mean of its divisors is an integer number (206323432).

Almost surely, 2^2121343044 is an apocalyptic number.

It is an amenable number.

2121343044 is an abundant number, since it is smaller than the sum of its proper divisors (2830419324).

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

2121343044 is a wasteful number, since it uses less digits than its factorization.

2121343044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70075 (or 70073 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 2121343044 is about 46058.0399496114. The cubic root of 2121343044 is about 1284.9028766798.

Adding to 2121343044 its reverse (4403431212), we get a palindrome (6524774256).

The spelling of 2121343044 in words is "two billion, one hundred twenty-one million, three hundred forty-three thousand, forty-four".