2123421333 has 16 divisors (see below), whose sum is σ = 3102230016. Its totient is φ = 1281248240.

The previous prime is 2123421271. The next prime is 2123421359. The reversal of 2123421333 is 3331243212.

It is a cyclic number.

It is not a de Polignac number, because 2123421333 - 2⁹ = 2123420821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123421373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134241 + ... + 149222.

It is an arithmetic number, because the mean of its divisors is an integer number (193889376).

Almost surely, 2^2123421333 is an apocalyptic number.

It is an amenable number.

2123421333 is a deficient number, since it is larger than the sum of its proper divisors (978808683).

2123421333 is a wasteful number, since it uses less digits than its factorization.

2123421333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283704.

The product of its digits is 2592, while the sum is 24.

The square root of 2123421333 is about 46080.5960573428. The cubic root of 2123421333 is about 1285.3223480346.

Adding to 2123421333 its reverse (3331243212), we get a palindrome (5454664545).

The spelling of 2123421333 in words is "two billion, one hundred twenty-three million, four hundred twenty-one thousand, three hundred thirty-three".