2121433234 has 16 divisors (see below), whose sum is σ = 3313209816. Its totient is φ = 1017878400.

The previous prime is 2121433229. The next prime is 2121433291. The reversal of 2121433234 is 4323341212.

It can be written as a sum of positive squares in 4 ways, for example, as 1309354225 + 812079009 = 36185^2 + 28497^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2121433199 and 2121433208.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207057 + ... + 217060.

Almost surely, 2^2121433234 is an apocalyptic number.

2121433234 is a deficient number, since it is larger than the sum of its proper divisors (1191776582).

2121433234 is a wasteful number, since it uses less digits than its factorization.

2121433234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424221.

The product of its digits is 3456, while the sum is 25.

The square root of 2121433234 is about 46059.0190299359. The cubic root of 2121433234 is about 1284.9210858592.

Adding to 2121433234 its reverse (4323341212), we get a palindrome (6444774446).

The spelling of 2121433234 in words is "two billion, one hundred twenty-one million, four hundred thirty-three thousand, two hundred thirty-four".