123601880 has 32 divisors (see below), whose sum is σ = 284891040. Its totient is φ = 48234240.

The previous prime is 123601879. The next prime is 123601889. The reversal of 123601880 is 88106321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123601889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36044 + ... + 39323.

It is an arithmetic number, because the mean of its divisors is an integer number (8902845).

Almost surely, 2^123601880 is an apocalyptic number.

123601880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123601880 is an abundant number, since it is smaller than the sum of its proper divisors (161289160).

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

123601880 is a wasteful number, since it uses less digits than its factorization.

123601880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75419 (or 75415 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 123601880 is about 11117.6382384030. The cubic root of 123601880 is about 498.1288463028.

The spelling of 123601880 in words is "one hundred twenty-three million, six hundred one thousand, eight hundred eighty".