123020196 has 48 divisors (see below), whose sum is σ = 310774464. Its totient is φ = 37650816.

The previous prime is 123020189. The next prime is 123020203. The reversal of 123020196 is 691020321.

It is an interprime number because it is at equal distance from previous prime (123020189) and next prime (123020203).

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 15 ways as a sum of consecutive naturals, for example, 28731 + ... + 32733.

It is an arithmetic number, because the mean of its divisors is an integer number (6474468).

Almost surely, 2^123020196 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 123020196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155387232).

123020196 is an abundant number, since it is smaller than the sum of its proper divisors (187754268).

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

123020196 is a wasteful number, since it uses less digits than its factorization.

123020196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4220 (or 4218 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 123020196 is about 11091.4469750344. The cubic root of 123020196 is about 497.3462009543.

The spelling of 123020196 in words is "one hundred twenty-three million, twenty thousand, one hundred ninety-six".