20442103132 has 24 divisors (see below), whose sum is σ = 40371554160. Its totient is φ = 8971455360.

The previous prime is 20442103109. The next prime is 20442103133. The reversal of 20442103132 is 23130124402.

It is a Harshad number since it is a multiple of its sum of digits (22).

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8008953 + ... + 8011504.

It is an arithmetic number, because the mean of its divisors is an integer number (1682148090).

Almost surely, 2^20442103132 is an apocalyptic number.

20442103132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20442103132 is a deficient number, since it is larger than the sum of its proper divisors (19929451028).

20442103132 is a wasteful number, since it uses less digits than its factorization.

20442103132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16020501 (or 16020499 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20442103132 its reverse (23130124402), we get a palindrome (43572227534).

The spelling of 20442103132 in words is "twenty billion, four hundred forty-two million, one hundred three thousand, one hundred thirty-two".