23021204033 has 4 divisors (see below), whose sum is σ = 23103130308. Its totient is φ = 22939277760.

The previous prime is 23021203981. The next prime is 23021204039. The reversal of 23021204033 is 33040212032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12745732609 + 10275471424 = 112897^2 + 101368^2 .

It is a cyclic number.

It is not a de Polignac number, because 23021204033 - 2⁶ = 23021203969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23021203996 and 23021204014.

It is not an unprimeable number, because it can be changed into a prime (23021204039) 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, 40962716 + ... + 40963277.

It is an arithmetic number, because the mean of its divisors is an integer number (5775782577).

Almost surely, 2^23021204033 is an apocalyptic number.

It is an amenable number.

23021204033 is a deficient number, since it is larger than the sum of its proper divisors (81926275).

23021204033 is an equidigital number, since it uses as much as digits as its factorization.

23021204033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81926274.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 23021204033 its reverse (33040212032), we get a palindrome (56061416065).

The spelling of 23021204033 in words is "twenty-three billion, twenty-one million, two hundred four thousand, thirty-three".