20111401422423 has 16 divisors (see below), whose sum is σ = 29795213196000. Its totient is φ = 13407355958400.

The previous prime is 20111401422419. The next prime is 20111401422443. The reversal of 20111401422423 is 32422410411102.

20111401422423 is a `hidden beast` number, since 2 + 0 + 1 + 11 + 401 + 4 + 2 + 242 + 3 = 666.

It is not a de Polignac number, because 20111401422423 - 2² = 20111401422419 is a prime.

It is a super-4 number, since 4×20111401422423⁴ (a number of 54 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111401422403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5294178 + ... + 8261423.

It is an arithmetic number, because the mean of its divisors is an integer number (1862200824750).

Almost surely, 2^{20111401422423} is an apocalyptic number.

20111401422423 is a deficient number, since it is larger than the sum of its proper divisors (9683811773577).

20111401422423 is a wasteful number, since it uses less digits than its factorization.

20111401422423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13610559 (or 13610553 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 20111401422423 its reverse (32422410411102), we get a palindrome (52533811833525).

The spelling of 20111401422423 in words is "twenty trillion, one hundred eleven billion, four hundred one million, four hundred twenty-two thousand, four hundred twenty-three".