23213222033 has 4 divisors (see below), whose sum is σ = 24578705700. Its totient is φ = 21847738368.

The previous prime is 23213222009. The next prime is 23213222059. The reversal of 23213222033 is 33022231232.

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 7672358464 + 15540863569 = 87592^2 + 124663^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23213222033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23213222233) 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, 682741808 + ... + 682741841.

It is an arithmetic number, because the mean of its divisors is an integer number (6144676425).

Almost surely, 2^23213222033 is an apocalyptic number.

It is an amenable number.

23213222033 is a deficient number, since it is larger than the sum of its proper divisors (1365483667).

23213222033 is a wasteful number, since it uses less digits than its factorization.

23213222033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365483666.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 23213222033 its reverse (33022231232), we get a palindrome (56235453265).

The spelling of 23213222033 in words is "twenty-three billion, two hundred thirteen million, two hundred twenty-two thousand, thirty-three".