2121233053 has 4 divisors (see below), whose sum is σ = 2130577920. Its totient is φ = 2111888188.

The previous prime is 2121233041. The next prime is 2121233057. The reversal of 2121233053 is 3503321212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2121233053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121233057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4672093 + ... + 4672546.

It is an arithmetic number, because the mean of its divisors is an integer number (532644480).

Almost surely, 2^2121233053 is an apocalyptic number.

It is an amenable number.

2121233053 is a deficient number, since it is larger than the sum of its proper divisors (9344867).

2121233053 is an equidigital number, since it uses as much as digits as its factorization.

2121233053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9344866.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 2121233053 is about 46056.8458863609. The cubic root of 2121233053 is about 1284.8806690199.

Adding to 2121233053 its reverse (3503321212), we get a palindrome (5624554265).

The spelling of 2121233053 in words is "two billion, one hundred twenty-one million, two hundred thirty-three thousand, fifty-three".