23533141220 has 24 divisors (see below), whose sum is σ = 52020628800. Its totient is φ = 8917821792.

The previous prime is 23533141199. The next prime is 23533141237. The reversal of 23533141220 is 2214133532.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 23533141220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30964280 + ... + 30965039.

It is an arithmetic number, because the mean of its divisors is an integer number (2167526200).

Almost surely, 2^23533141220 is an apocalyptic number.

23533141220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23533141220 is an abundant number, since it is smaller than the sum of its proper divisors (28487487580).

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

23533141220 is a wasteful number, since it uses less digits than its factorization.

23533141220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61929347 (or 61929345 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 23533141220 its reverse (2214133532), we get a palindrome (25747274752).

The spelling of 23533141220 in words is "twenty-three billion, five hundred thirty-three million, one hundred forty-one thousand, two hundred twenty".