23203004220 has 72 divisors (see below), whose sum is σ = 76780856880. Its totient is φ = 5624970240.

The previous prime is 23203004219. The next prime is 23203004239. The reversal of 23203004220 is 2240030232.

23203004220 is a `hidden beast` number, since 2 + 320 + 300 + 42 + 2 + 0 = 666.

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 = 23203004193 and 23203004202.

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 23 ways as a sum of consecutive naturals, for example, 5857365 + ... + 5861324.

It is an arithmetic number, because the mean of its divisors is an integer number (1066400790).

Almost surely, 2^23203004220 is an apocalyptic number.

23203004220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23203004220 is an abundant number, since it is smaller than the sum of its proper divisors (53577852660).

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

23203004220 is a wasteful number, since it uses less digits than its factorization.

23203004220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11718715 (or 11718710 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 23203004220 its reverse (2240030232), we get a palindrome (25443034452).

The spelling of 23203004220 in words is "twenty-three billion, two hundred three million, four thousand, two hundred twenty".