11400122406 has 16 divisors (see below), whose sum is σ = 23356348848. Its totient is φ = 3707356800.

The previous prime is 11400122387. The next prime is 11400122443. The reversal of 11400122406 is 60422100411.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23170735 + ... + 23171226.

It is an arithmetic number, because the mean of its divisors is an integer number (1459771803).

Almost surely, 2^11400122406 is an apocalyptic number.

11400122406 is an abundant number, since it is smaller than the sum of its proper divisors (11956226442).

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

11400122406 is a wasteful number, since it uses less digits than its factorization.

11400122406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46342007.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 11400122406 its reverse (60422100411), we get a palindrome (71822222817).

The spelling of 11400122406 in words is "eleven billion, four hundred million, one hundred twenty-two thousand, four hundred six".