123083720258 has 16 divisors (see below), whose sum is σ = 189789067320. Its totient is φ = 59823743616.

The previous prime is 123083720183. The next prime is 123083720281. The reversal of 123083720258 is 852027380321.

It can be written as a sum of positive squares in 4 ways, for example, as 122225054449 + 858665809 = 349607^2 + 29303^2 .

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, 680003 + ... + 841766.

Almost surely, 2^123083720258 is an apocalyptic number.

123083720258 is a deficient number, since it is larger than the sum of its proper divisors (66705347062).

123083720258 is a wasteful number, since it uses less digits than its factorization.

123083720258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522901.

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 123083720258 in words is "one hundred twenty-three billion, eighty-three million, seven hundred twenty thousand, two hundred fifty-eight".