20303013142 has 4 divisors (see below), whose sum is σ = 30454519716. Its totient is φ = 10151506570.

The previous prime is 20303013139. The next prime is 20303013161. The reversal of 20303013142 is 24131030302.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5075753284 + ... + 5075753287.

It is an arithmetic number, because the mean of its divisors is an integer number (7613629929).

Almost surely, 2^20303013142 is an apocalyptic number.

20303013142 is a deficient number, since it is larger than the sum of its proper divisors (10151506574).

20303013142 is a wasteful number, since it uses less digits than its factorization.

20303013142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10151506573.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20303013142 its reverse (24131030302), we get a palindrome (44434043444).

The spelling of 20303013142 in words is "twenty billion, three hundred three million, thirteen thousand, one hundred forty-two".