20983184112 has 40 divisors (see below), whose sum is σ = 59134429440. Its totient is φ = 6358540480.

The previous prime is 20983184107. The next prime is 20983184113. The reversal of 20983184112 is 21148138902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20983184113) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 19869912 + ... + 19870967.

It is an arithmetic number, because the mean of its divisors is an integer number (1478360736).

Almost surely, 2^20983184112 is an apocalyptic number.

20983184112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20983184112 is an abundant number, since it is smaller than the sum of its proper divisors (38151245328).

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

20983184112 is a wasteful number, since it uses less digits than its factorization.

20983184112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39740901 (or 39740895 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The spelling of 20983184112 in words is "twenty billion, nine hundred eighty-three million, one hundred eighty-four thousand, one hundred twelve".