20000124121432 has 256 divisors, whose sum is σ = 49369078886400. Its totient is φ = 7370602905600.

The previous prime is 20000124121429. The next prime is 20000124121447. The reversal of 20000124121432 is 23412142100002.

It is a super-2 number, since 2×20000124121432² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 4039610557 + ... + 4039615507.

It is an arithmetic number, because the mean of its divisors is an integer number (192847964400).

Almost surely, 2^{20000124121432} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20000124121432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24684539443200).

20000124121432 is an abundant number, since it is smaller than the sum of its proper divisors (29368954764968).

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

20000124121432 is a wasteful number, since it uses less digits than its factorization.

20000124121432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8266 (or 8262 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 20000124121432 its reverse (23412142100002), we get a palindrome (43412266221434).

The spelling of 20000124121432 in words is "twenty trillion, one hundred twenty-four million, one hundred twenty-one thousand, four hundred thirty-two".