23023013220 has 72 divisors (see below), whose sum is σ = 69860254464. Its totient is φ = 6137379648.

The previous prime is 23023013171. The next prime is 23023013227. The reversal of 23023013220 is 2231032032.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23023013193 and 23023013202.

It is not an unprimeable number, because it can be changed into a prime (23023013227) 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 23 ways as a sum of consecutive naturals, for example, 549867 + ... + 590253.

It is an arithmetic number, because the mean of its divisors is an integer number (970281312).

Almost surely, 2^23023013220 is an apocalyptic number.

23023013220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23023013220 is an abundant number, since it is smaller than the sum of its proper divisors (46837241244).

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

23023013220 is a wasteful number, since it uses less digits than its factorization.

23023013220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43569 (or 43564 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 23023013220 its reverse (2231032032), we get a palindrome (25254045252).

The spelling of 23023013220 in words is "twenty-three billion, twenty-three million, thirteen thousand, two hundred twenty".