20112426335100 has 144 divisors (see below), whose sum is σ = 63491563529856. Its totient is φ = 4875015264000.

The previous prime is 20112426335077. The next prime is 20112426335167. The reversal of 20112426335100 is 153362421102.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 21927907 + ... + 22826693.

It is an arithmetic number, because the mean of its divisors is an integer number (440913635624).

Almost surely, 2^{20112426335100} is an apocalyptic number.

20112426335100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20112426335100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31745781764928).

20112426335100 is an abundant number, since it is smaller than the sum of its proper divisors (43379137194756).

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

20112426335100 is a wasteful number, since it uses less digits than its factorization.

20112426335100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905596 (or 905589 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 20112426335100 its reverse (153362421102), we get a palindrome (20265788756202).

The spelling of 20112426335100 in words is "twenty trillion, one hundred twelve billion, four hundred twenty-six million, three hundred thirty-five thousand, one hundred".