20012042132 has 12 divisors (see below), whose sum is σ = 35543776800. Its totient is φ = 9856677336.

The previous prime is 20012042129. The next prime is 20012042137. The reversal of 20012042132 is 23124021002.

It is a self number, because there is not a number n which added to its sum of digits gives 20012042132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012042137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37335632 + ... + 37336167.

It is an arithmetic number, because the mean of its divisors is an integer number (2961981400).

Almost surely, 2^20012042132 is an apocalyptic number.

It is an amenable number.

20012042132 is a deficient number, since it is larger than the sum of its proper divisors (15531734668).

20012042132 is a wasteful number, since it uses less digits than its factorization.

20012042132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74671870 (or 74671868 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20012042132 its reverse (23124021002), we get a palindrome (43136063134).

The spelling of 20012042132 in words is "twenty billion, twelve million, forty-two thousand, one hundred thirty-two".