23331132220 has 48 divisors (see below), whose sum is σ = 53808300000. Its totient is φ = 8427096320.

The previous prime is 23331132211. The next prime is 23331132233. The reversal of 23331132220 is 2223113332.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 23331132191 and 23331132200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 323095 + ... + 388654.

It is an arithmetic number, because the mean of its divisors is an integer number (1121006250).

Almost surely, 2^23331132220 is an apocalyptic number.

23331132220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23331132220 is an abundant number, since it is smaller than the sum of its proper divisors (30477167780).

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

23331132220 is a wasteful number, since it uses less digits than its factorization.

23331132220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711918 (or 711916 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 23331132220 its reverse (2223113332), we get a palindrome (25554245552).

It can be divided in two parts, 23331 and 132220, that added together give a palindrome (155551).

The spelling of 23331132220 in words is "twenty-three billion, three hundred thirty-one million, one hundred thirty-two thousand, two hundred twenty".