23321505345 has 16 divisors (see below), whose sum is σ = 37345872960. Its totient is φ = 12427648064.

The previous prime is 23321505341. The next prime is 23321505353. The reversal of 23321505345 is 54350512332.

It is a cyclic number.

It is not a de Polignac number, because 23321505345 - 2² = 23321505341 is a prime.

It is a super-2 number, since 2×23321505345² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23321505341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 637110 + ... + 672719.

It is an arithmetic number, because the mean of its divisors is an integer number (2334117060).

Almost surely, 2^23321505345 is an apocalyptic number.

It is an amenable number.

23321505345 is a deficient number, since it is larger than the sum of its proper divisors (14024367615).

23321505345 is a wasteful number, since it uses less digits than its factorization.

23321505345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311024.

The product of its (nonzero) digits is 54000, while the sum is 33.

The spelling of 23321505345 in words is "twenty-three billion, three hundred twenty-one million, five hundred five thousand, three hundred forty-five".