11105420347854 has 48 divisors (see below), whose sum is σ = 29116732346208. Its totient is φ = 2986331521536.

The previous prime is 11105420347817. The next prime is 11105420347907. The reversal of 11105420347854 is 45874302450111.

11105420347854 is a `hidden beast` number, since 1 + 1 + 1 + 0 + 542 + 0 + 34 + 78 + 5 + 4 = 666.

It is a super-2 number, since 2×11105420347854² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2592299527 + ... + 2592303810.

It is an arithmetic number, because the mean of its divisors is an integer number (606598590546).

Almost surely, 2^{11105420347854} is an apocalyptic number.

11105420347854 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11105420347854 is an abundant number, since it is smaller than the sum of its proper divisors (18011311998354).

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

11105420347854 is a wasteful number, since it uses less digits than its factorization.

11105420347854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5184603369 (or 5184603366 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

Adding to 11105420347854 its reverse (45874302450111), we get a palindrome (56979722797965).

The spelling of 11105420347854 in words is "eleven trillion, one hundred five billion, four hundred twenty million, three hundred forty-seven thousand, eight hundred fifty-four".