21033124130 has 16 divisors (see below), whose sum is σ = 37867483584. Its totient is φ = 8411502960.

The previous prime is 21033124087. The next prime is 21033124139. The reversal of 21033124130 is 3142133012.

It is not an unprimeable number, because it can be changed into a prime (21033124139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167192 + ... + 264611.

It is an arithmetic number, because the mean of its divisors is an integer number (2366717724).

Almost surely, 2^21033124130 is an apocalyptic number.

21033124130 is a deficient number, since it is larger than the sum of its proper divisors (16834359454).

21033124130 is a wasteful number, since it uses less digits than its factorization.

21033124130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436681.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21033124130 its reverse (3142133012), we get a palindrome (24175257142).

The spelling of 21033124130 in words is "twenty-one billion, thirty-three million, one hundred twenty-four thousand, one hundred thirty".