20334100442 has 4 divisors (see below), whose sum is σ = 30501150666. Its totient is φ = 10167050220.

The previous prime is 20334100393. The next prime is 20334100463. The reversal of 20334100442 is 24400143302.

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

It can be written as a sum of positive squares in only one way, i.e., 20332193281 + 1907161 = 142591^2 + 1381^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5083525109 + ... + 5083525112.

Almost surely, 2^20334100442 is an apocalyptic number.

20334100442 is a deficient number, since it is larger than the sum of its proper divisors (10167050224).

20334100442 is a wasteful number, since it uses less digits than its factorization.

20334100442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10167050223.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20334100442 its reverse (24400143302), we get a palindrome (44734243744).

The spelling of 20334100442 in words is "twenty billion, three hundred thirty-four million, one hundred thousand, four hundred forty-two".