20102543032422 has 64 divisors (see below), whose sum is σ = 41919739589376. Its totient is φ = 6421907681280.

The previous prime is 20102543032399. The next prime is 20102543032433. The reversal of 20102543032422 is 22423034520102.

It is a super-2 number, since 2×20102543032422² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20102543032422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 869797 + ... + 6400127.

It is an arithmetic number, because the mean of its divisors is an integer number (654995931084).

Almost surely, 2^{20102543032422} is an apocalyptic number.

20102543032422 is an abundant number, since it is smaller than the sum of its proper divisors (21817196556954).

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

20102543032422 is a wasteful number, since it uses less digits than its factorization.

20102543032422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5530645.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 20102543032422 its reverse (22423034520102), we get a palindrome (42525577552524).

The spelling of 20102543032422 in words is "twenty trillion, one hundred two billion, five hundred forty-three million, thirty-two thousand, four hundred twenty-two".