23213444020 has 48 divisors (see below), whose sum is σ = 52539032448. Its totient is φ = 8564434560.

The previous prime is 23213444011. The next prime is 23213444041. The reversal of 23213444020 is 2044431232.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 305665 + ... + 373975.

It is an arithmetic number, because the mean of its divisors is an integer number (1094563176).

Almost surely, 2^23213444020 is an apocalyptic number.

23213444020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23213444020 is an abundant number, since it is smaller than the sum of its proper divisors (29325588428).

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

23213444020 is a wasteful number, since it uses less digits than its factorization.

23213444020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69640 (or 69638 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 23213444020 its reverse (2044431232), we get a palindrome (25257875252).

The spelling of 23213444020 in words is "twenty-three billion, two hundred thirteen million, four hundred forty-four thousand, twenty".