121123012 has 12 divisors (see below), whose sum is σ = 212162860. Its totient is φ = 60505056.

The previous prime is 121123007. The next prime is 121123021. The reversal of 121123012 is 210321121.

It can be written as a sum of positive squares in 2 ways, for example, as 18181696 + 102941316 = 4264^2 + 10146^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121122983 and 121123001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9087 + ... + 18022.

Almost surely, 2^121123012 is an apocalyptic number.

It is an amenable number.

121123012 is a deficient number, since it is larger than the sum of its proper divisors (91039848).

121123012 is a wasteful number, since it uses less digits than its factorization.

121123012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28230 (or 28228 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 121123012 is about 11005.5900341599. The cubic root of 121123012 is about 494.7762986068.

Adding to 121123012 its reverse (210321121), we get a palindrome (331444133).

The spelling of 121123012 in words is "one hundred twenty-one million, one hundred twenty-three thousand, twelve".