20144130442 has 8 divisors (see below), whose sum is σ = 30224228256. Its totient is φ = 10069387692.

The previous prime is 20144130439. The next prime is 20144130443. The reversal of 20144130442 is 24403144102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20144130442² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20144130443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1329348 + ... + 1344415.

It is an arithmetic number, because the mean of its divisors is an integer number (3778028532).

Almost surely, 2^20144130442 is an apocalyptic number.

20144130442 is a deficient number, since it is larger than the sum of its proper divisors (10080097814).

20144130442 is a wasteful number, since it uses less digits than its factorization.

20144130442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2677532.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 20144130442 its reverse (24403144102), we get a palindrome (44547274544).

The spelling of 20144130442 in words is "twenty billion, one hundred forty-four million, one hundred thirty thousand, four hundred forty-two".