23223052555021 has 4 divisors (see below), whose sum is σ = 25334239150944. Its totient is φ = 21111865959100.

The previous prime is 23223052554997. The next prime is 23223052555049. The reversal of 23223052555021 is 12055525032232.

It is a happy number.

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 23223052555021 - 2⁹ = 23223052554509 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 (23223052555721) 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, 1055593297945 + ... + 1055593297966.

It is an arithmetic number, because the mean of its divisors is an integer number (6333559787736).

Almost surely, 2^{23223052555021} is an apocalyptic number.

It is an amenable number.

23223052555021 is a deficient number, since it is larger than the sum of its proper divisors (2111186595923).

23223052555021 is a wasteful number, since it uses less digits than its factorization.

23223052555021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111186595922.

The product of its (nonzero) digits is 180000, while the sum is 37.

Adding to 23223052555021 its reverse (12055525032232), we get a palindrome (35278577587253).

The spelling of 23223052555021 in words is "twenty-three trillion, two hundred twenty-three billion, fifty-two million, five hundred fifty-five thousand, twenty-one".