123121060 has 24 divisors (see below), whose sum is σ = 259875000. Its totient is φ = 48996864.

The previous prime is 123121051. The next prime is 123121081. The reversal of 123121060 is 60121321.

It can be written as a sum of positive squares in 4 ways, for example, as 53465344 + 69655716 = 7312^2 + 8346^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11685 + ... + 19564.

It is an arithmetic number, because the mean of its divisors is an integer number (10828125).

Almost surely, 2^123121060 is an apocalyptic number.

123121060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123121060 is an abundant number, since it is smaller than the sum of its proper divisors (136753940).

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

123121060 is a wasteful number, since it uses less digits than its factorization.

123121060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31455 (or 31453 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 123121060 is about 11095.9929704376. The cubic root of 123121060 is about 497.4820881913.

Adding to 123121060 its reverse (60121321), we get a palindrome (183242381).

The spelling of 123121060 in words is "one hundred twenty-three million, one hundred twenty-one thousand, sixty".