23221533123133 has 4 divisors (see below), whose sum is σ = 23222539234908. Its totient is φ = 23220527011360.

The previous prime is 23221533123127. The next prime is 23221533123143. The reversal of 23221533123133 is 33132133512232.

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 18215158198084 + 5006374925049 = 4267922^2 + 2237493^2 .

It is a cyclic number.

It is not a de Polignac number, because 23221533123133 - 2⁹ = 23221533122621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23221533123143) 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, 503021266 + ... + 503067427.

It is an arithmetic number, because the mean of its divisors is an integer number (5805634808727).

Almost surely, 2^{23221533123133} is an apocalyptic number.

It is an amenable number.

23221533123133 is a deficient number, since it is larger than the sum of its proper divisors (1006111775).

23221533123133 is a wasteful number, since it uses less digits than its factorization.

23221533123133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006111774.

The product of its digits is 58320, while the sum is 34.

Adding to 23221533123133 its reverse (33132133512232), we get a palindrome (56353666635365).

The spelling of 23221533123133 in words is "twenty-three trillion, two hundred twenty-one billion, five hundred thirty-three million, one hundred twenty-three thousand, one hundred thirty-three".