123345602105 has 32 divisors (see below), whose sum is σ = 170126991360. Its totient is φ = 84905565120.

The previous prime is 123345602087. The next prime is 123345602129. The reversal of 123345602105 is 501206543321.

It is a happy number.

It is not a de Polignac number, because 123345602105 - 2¹⁶ = 123345536569 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1081622 + ... + 1190208.

It is an arithmetic number, because the mean of its divisors is an integer number (5316468480).

Almost surely, 2^123345602105 is an apocalyptic number.

It is an amenable number.

123345602105 is a deficient number, since it is larger than the sum of its proper divisors (46781389255).

123345602105 is a wasteful number, since it uses less digits than its factorization.

123345602105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109709.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 123345602105 in words is "one hundred twenty-three billion, three hundred forty-five million, six hundred two thousand, one hundred five".