20111422011423 has 8 divisors (see below), whose sum is σ = 26815416165936. Its totient is φ = 13407521265600.

The previous prime is 20111422011409. The next prime is 20111422011469. The reversal of 20111422011423 is 32411022411102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20111422011423 - 2⁴ = 20111422011407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20111422011393 and 20111422011402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111422011223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22848238 + ... + 23712123.

It is an arithmetic number, because the mean of its divisors is an integer number (3351927020742).

Almost surely, 2^{20111422011423} is an apocalyptic number.

20111422011423 is a deficient number, since it is larger than the sum of its proper divisors (6703994154513).

20111422011423 is a wasteful number, since it uses less digits than its factorization.

20111422011423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46704345.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 20111422011423 its reverse (32411022411102), we get a palindrome (52522444422525).

The spelling of 20111422011423 in words is "twenty trillion, one hundred eleven billion, four hundred twenty-two million, eleven thousand, four hundred twenty-three".