20042320036 has 12 divisors (see below), whose sum is σ = 36283510620. Its totient is φ = 9675602720.

The previous prime is 20042320021. The next prime is 20042320057. The reversal of 20042320036 is 63002324002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6570075136 + 13472244900 = 81056^2 + 116070^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20042319989 and 20042320016.

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, 86389195 + ... + 86389426.

It is an arithmetic number, because the mean of its divisors is an integer number (3023625885).

Almost surely, 2^20042320036 is an apocalyptic number.

It is an amenable number.

20042320036 is a deficient number, since it is larger than the sum of its proper divisors (16241190584).

20042320036 is a wasteful number, since it uses less digits than its factorization.

20042320036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172778654 (or 172778652 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20042320036 its reverse (63002324002), we get a palindrome (83044644038).

The spelling of 20042320036 in words is "twenty billion, forty-two million, three hundred twenty thousand, thirty-six".