20332402042 has 8 divisors (see below), whose sum is σ = 30513640500. Its totient is φ = 10161188544.

The previous prime is 20332402039. The next prime is 20332402049. The reversal of 20332402042 is 24020423302.

It can be written as a sum of positive squares in 2 ways, for example, as 20133055881 + 199346161 = 141891^2 + 14119^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20332402049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2501167 + ... + 2509282.

Almost surely, 2^20332402042 is an apocalyptic number.

20332402042 is a deficient number, since it is larger than the sum of its proper divisors (10181238458).

20332402042 is a wasteful number, since it uses less digits than its factorization.

20332402042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5012480.

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 20332402042 its reverse (24020423302), we get a palindrome (44352825344).

The spelling of 20332402042 in words is "twenty billion, three hundred thirty-two million, four hundred two thousand, forty-two".