123012080 has 40 divisors (see below), whose sum is σ = 301059600. Its totient is φ = 46614528.

The previous prime is 123012053. The next prime is 123012083. The reversal of 123012080 is 80210321.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123012083) by changing a digit.

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, 38945 + ... + 41984.

It is an arithmetic number, because the mean of its divisors is an integer number (7526490).

Almost surely, 2^123012080 is an apocalyptic number.

123012080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123012080 is an abundant number, since it is smaller than the sum of its proper divisors (178047520).

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

123012080 is a wasteful number, since it uses less digits than its factorization.

123012080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80961 (or 80955 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 123012080 is about 11091.0811014977. The cubic root of 123012080 is about 497.3352635888.

The spelling of 123012080 in words is "one hundred twenty-three million, twelve thousand, eighty".