123313178196 has 120 divisors (see below), whose sum is σ = 348392403744. Its totient is φ = 37808078400.

The previous prime is 123313178161. The next prime is 123313178231. The reversal of 123313178196 is 691871313321.

It is an interprime number because it is at equal distance from previous prime (123313178161) and next prime (123313178231).

It is a super-2 number, since 2×123313178196² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1140271 + ... + 1243721.

Almost surely, 2^123313178196 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123313178196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174196201872).

123313178196 is an abundant number, since it is smaller than the sum of its proper divisors (225079225548).

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

123313178196 is a wasteful number, since it uses less digits than its factorization.

123313178196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103763 (or 103752 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The spelling of 123313178196 in words is "one hundred twenty-three billion, three hundred thirteen million, one hundred seventy-eight thousand, one hundred ninety-six".