23223133105520 has 40 divisors (see below), whose sum is σ = 53995093899360. Its totient is φ = 9289027964160.

The previous prime is 23223133105511. The next prime is 23223133105553. The reversal of 23223133105520 is 2550133132232.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×23223133105520² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180911 + ... + 6817550.

It is an arithmetic number, because the mean of its divisors is an integer number (1349877347484).

Almost surely, 2^{23223133105520} is an apocalyptic number.

23223133105520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23223133105520 is an abundant number, since it is smaller than the sum of its proper divisors (30771960793840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23223133105520 is a wasteful number, since it uses less digits than its factorization.

23223133105520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7039953 (or 7039947 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 32.

Adding to 23223133105520 its reverse (2550133132232), we get a palindrome (25773266237752).

The spelling of 23223133105520 in words is "twenty-three trillion, two hundred twenty-three billion, one hundred thirty-three million, one hundred five thousand, five hundred twenty".