111105054638 has 16 divisors (see below), whose sum is σ = 166820280144. Its totient is φ = 55498322880.

The previous prime is 111105054631. The next prime is 111105054757. The reversal of 111105054638 is 836450501111.

111105054638 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×111105054638² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111105054598 and 111105054607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111105054631) 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, 12943508 + ... + 12952088.

It is an arithmetic number, because the mean of its divisors is an integer number (10426267509).

Almost surely, 2^111105054638 is an apocalyptic number.

111105054638 is a deficient number, since it is larger than the sum of its proper divisors (55715225506).

111105054638 is a wasteful number, since it uses less digits than its factorization.

111105054638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14147.

The product of its (nonzero) digits is 14400, while the sum is 35.

Adding to 111105054638 its reverse (836450501111), we get a palindrome (947555555749).

The spelling of 111105054638 in words is "one hundred eleven billion, one hundred five million, fifty-four thousand, six hundred thirty-eight".