20442103134 has 16 divisors (see below), whose sum is σ = 41206130688. Its totient is φ = 6760380312.

The previous prime is 20442103133. The next prime is 20442103141. The reversal of 20442103134 is 43130124402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20442103133) 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, 13412692 + ... + 13414215.

It is an arithmetic number, because the mean of its divisors is an integer number (2575383168).

Almost surely, 2^20442103134 is an apocalyptic number.

20442103134 is an abundant number, since it is smaller than the sum of its proper divisors (20764027554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20442103134 is a wasteful number, since it uses less digits than its factorization.

20442103134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26827039.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20442103134 its reverse (43130124402), we get a palindrome (63572227536).

The spelling of 20442103134 in words is "twenty billion, four hundred forty-two million, one hundred three thousand, one hundred thirty-four".