20420032241104 has 20 divisors (see below), whose sum is σ = 39563891175364. Its totient is φ = 10209995808768.

The previous prime is 20420032241053. The next prime is 20420032241107. The reversal of 20420032241104 is 40114223002402.

It can be written as a sum of positive squares in 2 ways, for example, as 208246195600 + 20211786045504 = 456340^2 + 4495752^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20420032241107) 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 3 ways as a sum of consecutive naturals, for example, 10122064 + ... + 11970640.

Almost surely, 2^{20420032241104} is an apocalyptic number.

It is an amenable number.

20420032241104 is a deficient number, since it is larger than the sum of its proper divisors (19143858934260).

20420032241104 is a wasteful number, since it uses less digits than its factorization.

20420032241104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2538982 (or 2538976 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 20420032241104 its reverse (40114223002402), we get a palindrome (60534255243506).

The spelling of 20420032241104 in words is "twenty trillion, four hundred twenty billion, thirty-two million, two hundred forty-one thousand, one hundred four".