123545112311105 has 8 divisors (see below), whose sum is σ = 148667098939200. Its totient is φ = 98560780404976.

The previous prime is 123545112311077. The next prime is 123545112311183. The reversal of 123545112311105 is 501113211545321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123545112311105 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34413678515 + ... + 34413682104.

It is an arithmetic number, because the mean of its divisors is an integer number (18583387367400).

Almost surely, 2^{123545112311105} is an apocalyptic number.

It is an amenable number.

123545112311105 is a deficient number, since it is larger than the sum of its proper divisors (25121986628095).

123545112311105 is an equidigital number, since it uses as much as digits as its factorization.

123545112311105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68827360983.

The product of its (nonzero) digits is 18000, while the sum is 35.

Adding to 123545112311105 its reverse (501113211545321), we get a palindrome (624658323856426).

The spelling of 123545112311105 in words is "one hundred twenty-three trillion, five hundred forty-five billion, one hundred twelve million, three hundred eleven thousand, one hundred five".