20183819482120 has 128 divisors (see below), whose sum is σ = 52020938914560. Its totient is φ = 6904215843840.

The previous prime is 20183819482109. The next prime is 20183819482129. The reversal of 20183819482120 is 2128491838102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20183819482129) 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, 571486702 + ... + 571522018.

It is an arithmetic number, because the mean of its divisors is an integer number (406413585270).

Almost surely, 2^{20183819482120} is an apocalyptic number.

20183819482120 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 20183819482120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26010469457280).

20183819482120 is an abundant number, since it is smaller than the sum of its proper divisors (31837119432440).

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

20183819482120 is a wasteful number, since it uses less digits than its factorization.

20183819482120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39983 (or 39979 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 49.

The spelling of 20183819482120 in words is "twenty trillion, one hundred eighty-three billion, eight hundred nineteen million, four hundred eighty-two thousand, one hundred twenty".