20232121033 has 4 divisors (see below), whose sum is σ = 20232406480. Its totient is φ = 20231835588.

The previous prime is 20232121009. The next prime is 20232121043. The reversal of 20232121033 is 33012123202.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20232121033 - 2³³ = 11642186441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20232121033.

It is not an unprimeable number, because it can be changed into a prime (20232121043) 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, 53758 + ... + 208216.

It is an arithmetic number, because the mean of its divisors is an integer number (5058101620).

Almost surely, 2^20232121033 is an apocalyptic number.

It is an amenable number.

20232121033 is a deficient number, since it is larger than the sum of its proper divisors (285447).

20232121033 is a wasteful number, since it uses less digits than its factorization.

20232121033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285446.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20232121033 its reverse (33012123202), we get a palindrome (53244244235).

The spelling of 20232121033 in words is "twenty billion, two hundred thirty-two million, one hundred twenty-one thousand, thirty-three".