2123235533 has 4 divisors (see below), whose sum is σ = 2148816768. Its totient is φ = 2097654300.

The previous prime is 2123235487. The next prime is 2123235571. The reversal of 2123235533 is 3355323212.

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 not a de Polignac number, because 2123235533 - 2⁶ = 2123235469 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2123235496 and 2123235505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123235833) 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, 12790493 + ... + 12790658.

It is an arithmetic number, because the mean of its divisors is an integer number (537204192).

Almost surely, 2^2123235533 is an apocalyptic number.

It is an amenable number.

2123235533 is a deficient number, since it is larger than the sum of its proper divisors (25581235).

2123235533 is an equidigital number, since it uses as much as digits as its factorization.

2123235533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25581234.

The product of its digits is 16200, while the sum is 29.

The square root of 2123235533 is about 46078.5799802902. The cubic root of 2123235533 is about 1285.2848582448.

Adding to 2123235533 its reverse (3355323212), we get a palindrome (5478558745).

It can be divided in two parts, 21232 and 35533, that added together give a palindrome (56765).

The spelling of 2123235533 in words is "two billion, one hundred twenty-three million, two hundred thirty-five thousand, five hundred thirty-three".