123120258 has 8 divisors (see below), whose sum is σ = 246240528. Its totient is φ = 41040084.

The previous prime is 123120241. The next prime is 123120281. The reversal of 123120258 is 852021321.

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

123120258 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10260016 + ... + 10260027.

It is an arithmetic number, because the mean of its divisors is an integer number (30780066).

Almost surely, 2^123120258 is an apocalyptic number.

123120258 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

123120258 is a wasteful number, since it uses less digits than its factorization.

123120258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20520048.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 123120258 is about 11095.9568312066. The cubic root of 123120258 is about 497.4810080037.

Adding to 123120258 its reverse (852021321), we get a palindrome (975141579).

The spelling of 123120258 in words is "one hundred twenty-three million, one hundred twenty thousand, two hundred fifty-eight".