23200354520 has 64 divisors (see below), whose sum is σ = 59786138880. Its totient is φ = 7937329536.

The previous prime is 23200354519. The next prime is 23200354531. The reversal of 23200354520 is 2545300232.

It is a self number, because there is not a number n which added to its sum of digits gives 23200354520.

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, 42047 + ... + 219473.

It is an arithmetic number, because the mean of its divisors is an integer number (934158420).

Almost surely, 2^23200354520 is an apocalyptic number.

23200354520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23200354520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29893069440).

23200354520 is an abundant number, since it is smaller than the sum of its proper divisors (36585784360).

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

23200354520 is a wasteful number, since it uses less digits than its factorization.

23200354520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177912 (or 177908 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 26.

Adding to 23200354520 its reverse (2545300232), we get a palindrome (25745654752).

The spelling of 23200354520 in words is "twenty-three billion, two hundred million, three hundred fifty-four thousand, five hundred twenty".