123245100320445 has 48 divisors (see below), whose sum is σ = 213947947799040. Its totient is φ = 65631327328512.

The previous prime is 123245100320431. The next prime is 123245100320479. The reversal of 123245100320445 is 544023001542321.

It is a happy number.

123245100320445 is a `hidden beast` number, since 1 + 2 + 324 + 5 + 1 + 0 + 0 + 320 + 4 + 4 + 5 = 666.

It is not a de Polignac number, because 123245100320445 - 2⁸ = 123245100320189 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 242393196 + ... + 242901114.

It is an arithmetic number, because the mean of its divisors is an integer number (4457248912480).

Almost surely, 2^{123245100320445} is an apocalyptic number.

123245100320445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123245100320445 is a deficient number, since it is larger than the sum of its proper divisors (90702847478595).

123245100320445 is a wasteful number, since it uses less digits than its factorization.

123245100320445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516074 (or 516071 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 123245100320445 its reverse (544023001542321), we get a palindrome (667268101862766).

The spelling of 123245100320445 in words is "one hundred twenty-three trillion, two hundred forty-five billion, one hundred million, three hundred twenty thousand, four hundred forty-five".