123361620 has 48 divisors (see below), whose sum is σ = 353844288. Its totient is φ = 32093440.

The previous prime is 123361603. The next prime is 123361633. The reversal of 123361620 is 26163321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22614 + ... + 27533.

It is an arithmetic number, because the mean of its divisors is an integer number (7371756).

Almost surely, 2^123361620 is an apocalyptic number.

123361620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123361620 is an abundant number, since it is smaller than the sum of its proper divisors (230482668).

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

123361620 is a wasteful number, since it uses less digits than its factorization.

123361620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50200 (or 50198 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 123361620 is about 11106.8276298860. The cubic root of 123361620 is about 497.8058790840.

The spelling of 123361620 in words is "one hundred twenty-three million, three hundred sixty-one thousand, six hundred twenty".