23043421033 has 4 divisors (see below), whose sum is σ = 24045308928. Its totient is φ = 22041533140.

The previous prime is 23043421007. The next prime is 23043421039. The reversal of 23043421033 is 33012434032.

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 23043421033 - 2¹⁷ = 23043289961 is a prime.

It is a super-3 number, since 3×23043421033³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23043420989 and 23043421007.

It is not an unprimeable number, because it can be changed into a prime (23043421039) 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, 500943913 + ... + 500943958.

It is an arithmetic number, because the mean of its divisors is an integer number (6011327232).

Almost surely, 2^23043421033 is an apocalyptic number.

23043421033 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

23043421033 is a deficient number, since it is larger than the sum of its proper divisors (1001887895).

23043421033 is a wasteful number, since it uses less digits than its factorization.

23043421033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001887894.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 23043421033 its reverse (33012434032), we get a palindrome (56055855065).

The spelling of 23043421033 in words is "twenty-three billion, forty-three million, four hundred twenty-one thousand, thirty-three".