20203004442 has 16 divisors (see below), whose sum is σ = 42782833152.
Its totient is φ = 6338197440.
The previous prime is 20203004441. The next prime is 20203004443. The reversal of 20203004442 is 24440030202.
It is an interprime number because it is at equal distance from previous prime (20203004441) and next prime (20203004443).
It is a super-2 number, since 2×202030044422 (a number of 21 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (20203004441) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99034234 + ... + 99034437.
It is an arithmetic number, because the mean of its divisors is an integer number (2673927072).
Almost surely, 220203004442 is an apocalyptic number.
20203004442 is an abundant number, since it is smaller than the sum of its proper divisors (22579828710).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20203004442 is a wasteful number, since it uses less digits than its factorization.
20203004442 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 198068693.
The product of its (nonzero) digits is 1536, while the sum is 21.
Adding to 20203004442 its reverse (24440030202), we get a palindrome (44643034644).
The spelling of 20203004442 in words is "twenty billion, two hundred three million, four thousand, four hundred forty-two".