2121030331233 has 16 divisors (see below), whose sum is σ = 3085163417856. Its totient is φ = 1285461098640.

The previous prime is 2121030331201. The next prime is 2121030331243. The reversal of 2121030331233 is 3321330301212.

It is not a de Polignac number, because 2121030331233 - 2⁵ = 2121030331201 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2121030331243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4510410 + ... + 4958412.

It is an arithmetic number, because the mean of its divisors is an integer number (192822713616).

Almost surely, 2^{2121030331233} is an apocalyptic number.

It is an amenable number.

2121030331233 is a deficient number, since it is larger than the sum of its proper divisors (964133086623).

2121030331233 is a wasteful number, since it uses less digits than its factorization.

2121030331233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591484.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 2121030331233 its reverse (3321330301212), we get a palindrome (5442360632445).

The spelling of 2121030331233 in words is "two trillion, one hundred twenty-one billion, thirty million, three hundred thirty-one thousand, two hundred thirty-three".