20141143440442 has 4 divisors (see below), whose sum is σ = 30211715160666. Its totient is φ = 10070571720220.

The previous prime is 20141143440421. The next prime is 20141143440449. The reversal of 20141143440442 is 24404434114102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20140357815601 + 785624841 = 4487801^2 + 28029^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20141143440398 and 20141143440407.

It is not an unprimeable number, because it can be changed into a prime (20141143440449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5035285860109 + ... + 5035285860112.

Almost surely, 2^{20141143440442} is an apocalyptic number.

20141143440442 is a deficient number, since it is larger than the sum of its proper divisors (10070571720224).

20141143440442 is a wasteful number, since it uses less digits than its factorization.

20141143440442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10070571720223.

The product of its (nonzero) digits is 49152, while the sum is 34.

Adding to 20141143440442 its reverse (24404434114102), we get a palindrome (44545577554544).

The spelling of 20141143440442 in words is "twenty trillion, one hundred forty-one billion, one hundred forty-three million, four hundred forty thousand, four hundred forty-two".