20443433120 has 192 divisors, whose sum is σ = 54177040512. Its totient is φ = 7225344000.

The previous prime is 20443433119. The next prime is 20443433123. The reversal of 20443433120 is 2133434402.

It is a self number, because there is not a number n which added to its sum of digits gives 20443433120.

It is not an unprimeable number, because it can be changed into a prime (20443433123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35430272 + ... + 35430848.

It is an arithmetic number, because the mean of its divisors is an integer number (282172086).

Almost surely, 2^20443433120 is an apocalyptic number.

20443433120 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 20443433120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27088520256).

20443433120 is an abundant number, since it is smaller than the sum of its proper divisors (33733607392).

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

20443433120 is a wasteful number, since it uses less digits than its factorization.

20443433120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135 (or 1127 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 20443433120 its reverse (2133434402), we get a palindrome (22576867522).

The spelling of 20443433120 in words is "twenty billion, four hundred forty-three million, four hundred thirty-three thousand, one hundred twenty".