113105121554 has 8 divisors (see below), whose sum is σ = 169662749808. Its totient is φ = 56550871620.

The previous prime is 113105121553. The next prime is 113105121583. The reversal of 113105121554 is 455121501311.

It is a happy number.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113105121553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 759152 + ... + 895835.

It is an arithmetic number, because the mean of its divisors is an integer number (21207843726).

Almost surely, 2^113105121554 is an apocalyptic number.

113105121554 is a deficient number, since it is larger than the sum of its proper divisors (56557628254).

113105121554 is a wasteful number, since it uses less digits than its factorization.

113105121554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1689160.

The product of its (nonzero) digits is 3000, while the sum is 29.

Adding to 113105121554 its reverse (455121501311), we get a palindrome (568226622865).

The spelling of 113105121554 in words is "one hundred thirteen billion, one hundred five million, one hundred twenty-one thousand, five hundred fifty-four".