111345123354 has 16 divisors (see below), whose sum is σ = 225826729920. Its totient is φ = 36592293920.

The previous prime is 111345123353. The next prime is 111345123359. The reversal of 111345123354 is 453321543111.

It is not an unprimeable number, because it can be changed into a prime (111345123353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130686339 + ... + 130687190.

It is an arithmetic number, because the mean of its divisors is an integer number (14114170620).

Almost surely, 2^111345123354 is an apocalyptic number.

111345123354 is an abundant number, since it is smaller than the sum of its proper divisors (114481606566).

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

111345123354 is a wasteful number, since it uses less digits than its factorization.

111345123354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261373605.

The product of its digits is 21600, while the sum is 33.

Adding to 111345123354 its reverse (453321543111), we get a palindrome (564666666465).

The spelling of 111345123354 in words is "one hundred eleven billion, three hundred forty-five million, one hundred twenty-three thousand, three hundred fifty-four".