20001424434011 has 4 divisors (see below), whose sum is σ = 20055047556192. Its totient is φ = 19947801311832.

The previous prime is 20001424434001. The next prime is 20001424434031. The reversal of 20001424434011 is 11043442410002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20001424434011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20001424434001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26811560531 + ... + 26811561276.

It is an arithmetic number, because the mean of its divisors is an integer number (5013761889048).

Almost surely, 2^{20001424434011} is an apocalyptic number.

20001424434011 is a deficient number, since it is larger than the sum of its proper divisors (53623122181).

20001424434011 is an equidigital number, since it uses as much as digits as its factorization.

20001424434011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53623122180.

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

Adding to 20001424434011 its reverse (11043442410002), we get a palindrome (31044866844013).

The spelling of 20001424434011 in words is "twenty trillion, one billion, four hundred twenty-four million, four hundred thirty-four thousand, eleven".