20143034442 has 12 divisors (see below), whose sum is σ = 43643241330. Its totient is φ = 6714344808.

The previous prime is 20143034441. The next prime is 20143034473. The reversal of 20143034442 is 24443034102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 16895060361 + 3247974081 = 129981^2 + 56991^2 .

It is not an unprimeable number, because it can be changed into a prime (20143034441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 559528717 + ... + 559528752.

Almost surely, 2^20143034442 is an apocalyptic number.

20143034442 is an abundant number, since it is smaller than the sum of its proper divisors (23500206888).

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

20143034442 is a wasteful number, since it uses less digits than its factorization.

20143034442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119057477 (or 1119057474 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 20143034442 its reverse (24443034102), we get a palindrome (44586068544).

The spelling of 20143034442 in words is "twenty billion, one hundred forty-three million, thirty-four thousand, four hundred forty-two".