20423142330252 has 24 divisors (see below), whose sum is σ = 50162103969600. Its totient is φ = 6449413367376.

The previous prime is 20423142330223. The next prime is 20423142330257. The reversal of 20423142330252 is 25203324132402.

It is not an unprimeable number, because it can be changed into a prime (20423142330257) 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, 44787592602 + ... + 44787593057.

It is an arithmetic number, because the mean of its divisors is an integer number (2090087665400).

Almost surely, 2^{20423142330252} is an apocalyptic number.

It is an amenable number.

20423142330252 is an abundant number, since it is smaller than the sum of its proper divisors (29738961639348).

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

20423142330252 is a wasteful number, since it uses less digits than its factorization.

20423142330252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89575185685 (or 89575185683 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 20423142330252 its reverse (25203324132402), we get a palindrome (45626466462654).

The spelling of 20423142330252 in words is "twenty trillion, four hundred twenty-three billion, one hundred forty-two million, three hundred thirty thousand, two hundred fifty-two".