123112195 has 8 divisors (see below), whose sum is σ = 148485744. Its totient is φ = 97989024.

The previous prime is 123112189. The next prime is 123112201. The reversal of 123112195 is 591211321.

It is an interprime number because it is at equal distance from previous prime (123112189) and next prime (123112201).

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

It is a cyclic number.

It is not a de Polignac number, because 123112195 - 2⁹ = 123111683 is a prime.

It is a super-2 number, since 2×123112195² = 30313225115436050, which contains 22 as substring.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 61509 + ... + 63478.

It is an arithmetic number, because the mean of its divisors is an integer number (18560718).

Almost surely, 2^123112195 is an apocalyptic number.

123112195 is a deficient number, since it is larger than the sum of its proper divisors (25373549).

123112195 is a wasteful number, since it uses less digits than its factorization.

123112195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125189.

The product of its digits is 540, while the sum is 25.

The square root of 123112195 is about 11095.5934947167. The cubic root of 123112195 is about 497.4701479525.

The spelling of 123112195 in words is "one hundred twenty-three million, one hundred twelve thousand, one hundred ninety-five".