23321111053021 has 2 divisors, whose sum is σ = 23321111053022. Its totient is φ = 23321111053020.

The previous prime is 23321111052947. The next prime is 23321111053153. The reversal of 23321111053021 is 12035011112332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21676343277796 + 1644767775225 = 4655786^2 + 1282485^2 .

It is a cyclic number.

It is not a de Polignac number, because 23321111053021 - 2⁴³ = 14525018030813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23321111056021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11660555526510 + 11660555526511.

It is an arithmetic number, because the mean of its divisors is an integer number (11660555526511).

Almost surely, 2^{23321111053021} is an apocalyptic number.

It is an amenable number.

23321111053021 is a deficient number, since it is larger than the sum of its proper divisors (1).

23321111053021 is an equidigital number, since it uses as much as digits as its factorization.

23321111053021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 23321111053021 its reverse (12035011112332), we get a palindrome (35356122165353).

The spelling of 23321111053021 in words is "twenty-three trillion, three hundred twenty-one billion, one hundred eleven million, fifty-three thousand, twenty-one".