20245243142 has 8 divisors (see below), whose sum is σ = 30401349096. Its totient is φ = 10111460112.

The previous prime is 20245243093. The next prime is 20245243199. The reversal of 20245243142 is 24134254202.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5578463 + ... + 5582090.

It is an arithmetic number, because the mean of its divisors is an integer number (3800168637).

Almost surely, 2^20245243142 is an apocalyptic number.

20245243142 is a deficient number, since it is larger than the sum of its proper divisors (10156105954).

20245243142 is a wasteful number, since it uses less digits than its factorization.

20245243142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11161462.

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 20245243142 its reverse (24134254202), we get a palindrome (44379497344).

The spelling of 20245243142 in words is "twenty billion, two hundred forty-five million, two hundred forty-three thousand, one hundred forty-two".