123461220 has 48 divisors (see below), whose sum is σ = 356848128. Its totient is φ = 31860480.

The previous prime is 123461203. The next prime is 123461227. The reversal of 123461220 is 22164321.

It is not an unprimeable number, because it can be changed into a prime (123461227) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 31329 + ... + 35048.

It is an arithmetic number, because the mean of its divisors is an integer number (7434336).

Almost surely, 2^123461220 is an apocalyptic number.

123461220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123461220 is an abundant number, since it is smaller than the sum of its proper divisors (233386908).

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

123461220 is a wasteful number, since it uses less digits than its factorization.

123461220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66420 (or 66418 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 123461220 is about 11111.3104537674. The cubic root of 123461220 is about 497.9398162783.

The spelling of 123461220 in words is "one hundred twenty-three million, four hundred sixty-one thousand, two hundred twenty".