20104431142 has 8 divisors (see below), whose sum is σ = 30581388432. Its totient is φ = 9910635000.

The previous prime is 20104431133. The next prime is 20104431143. The reversal of 20104431142 is 24113440102.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20104431143) 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, 70790109 + ... + 70790392.

It is an arithmetic number, because the mean of its divisors is an integer number (3822673554).

Almost surely, 2^20104431142 is an apocalyptic number.

20104431142 is a deficient number, since it is larger than the sum of its proper divisors (10476957290).

20104431142 is a wasteful number, since it uses less digits than its factorization.

20104431142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141580574.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 20104431142 its reverse (24113440102), we get a palindrome (44217871244).

The spelling of 20104431142 in words is "twenty billion, one hundred four million, four hundred thirty-one thousand, one hundred forty-two".