20324056142 has 16 divisors (see below), whose sum is σ = 32907008400. Its totient is φ = 9358664832.

The previous prime is 20324056141. The next prime is 20324056153. The reversal of 20324056142 is 24165042302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20324056141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 891392 + ... + 913907.

It is an arithmetic number, because the mean of its divisors is an integer number (2056688025).

Almost surely, 2^20324056142 is an apocalyptic number.

20324056142 is a deficient number, since it is larger than the sum of its proper divisors (12582952258).

20324056142 is a wasteful number, since it uses less digits than its factorization.

20324056142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1805747.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 20324056142 its reverse (24165042302), we get a palindrome (44489098444).

The spelling of 20324056142 in words is "twenty billion, three hundred twenty-four million, fifty-six thousand, one hundred forty-two".