20011234241420 has 12 divisors (see below), whose sum is σ = 42023591907024. Its totient is φ = 8004493696560.

The previous prime is 20011234241359. The next prime is 20011234241431. The reversal of 20011234241420 is 2414243211002.

It is a self number, because there is not a number n which added to its sum of digits gives 20011234241420.

It is an unprimeable number.

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, 500280856016 + ... + 500280856055.

It is an arithmetic number, because the mean of its divisors is an integer number (3501965992252).

Almost surely, 2^{20011234241420} is an apocalyptic number.

20011234241420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20011234241420 is an abundant number, since it is smaller than the sum of its proper divisors (22012357665604).

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

20011234241420 is a wasteful number, since it uses less digits than its factorization.

20011234241420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000561712080 (or 1000561712078 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 20011234241420 its reverse (2414243211002), we get a palindrome (22425477452422).

The spelling of 20011234241420 in words is "twenty trillion, eleven billion, two hundred thirty-four million, two hundred forty-one thousand, four hundred twenty".