121320112 has 20 divisors (see below), whose sum is σ = 242641216. Its totient is φ = 58703040.

The previous prime is 121320103. The next prime is 121320163. The reversal of 121320112 is 211023121.

121320112 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 121320092 and 121320101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121803 + ... + 122794.

Almost surely, 2^121320112 is an apocalyptic number.

It is an amenable number.

121320112 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

121320112 is a wasteful number, since it uses less digits than its factorization.

121320112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244636 (or 244630 counting only the distinct ones).

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

The square root of 121320112 is about 11014.5409346010. The cubic root of 121320112 is about 495.0445315853.

Adding to 121320112 its reverse (211023121), we get a palindrome (332343233).

The spelling of 121320112 in words is "one hundred twenty-one million, three hundred twenty thousand, one hundred twelve".