21134018182 has 16 divisors (see below), whose sum is σ = 33278284800. Its totient is φ = 10052811720.

The previous prime is 21134018083. The next prime is 21134018189. The reversal of 21134018182 is 28181043112.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21134018189) 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, 2885082 + ... + 2892397.

It is an arithmetic number, because the mean of its divisors is an integer number (2079892800).

Almost surely, 2^21134018182 is an apocalyptic number.

21134018182 is a deficient number, since it is larger than the sum of its proper divisors (12144266618).

21134018182 is a wasteful number, since it uses less digits than its factorization.

21134018182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5777571.

The product of its (nonzero) digits is 3072, while the sum is 31.

The spelling of 21134018182 in words is "twenty-one billion, one hundred thirty-four million, eighteen thousand, one hundred eighty-two".