20112304432242 has 96 divisors (see below), whose sum is σ = 45597227461632. Its totient is φ = 5905310400000.

The previous prime is 20112304432237. The next prime is 20112304432243. The reversal of 20112304432242 is 24223440321102.

It is not an unprimeable number, because it can be changed into a prime (20112304432243) 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 47 ways as a sum of consecutive naturals, for example, 4920367 + ... + 8027117.

It is an arithmetic number, because the mean of its divisors is an integer number (474971119392).

Almost surely, 2^{20112304432242} is an apocalyptic number.

20112304432242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20112304432242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22798613730816).

20112304432242 is an abundant number, since it is smaller than the sum of its proper divisors (25484923029390).

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

20112304432242 is a wasteful number, since it uses less digits than its factorization.

20112304432242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3107056 (or 3107045 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 20112304432242 its reverse (24223440321102), we get a palindrome (44335744753344).

The spelling of 20112304432242 in words is "twenty trillion, one hundred twelve billion, three hundred four million, four hundred thirty-two thousand, two hundred forty-two".