121143200 has 36 divisors (see below), whose sum is σ = 295742790. Its totient is φ = 48456960.

The previous prime is 121143193. The next prime is 121143227. The reversal of 121143200 is 2341121.

It can be written as a sum of positive squares in 3 ways, for example, as 73753744 + 47389456 = 8588^2 + 6884^2 .

It is a super-3 number, since 3×121143200³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74915 + ... + 76514.

Almost surely, 2^121143200 is an apocalyptic number.

121143200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121143200 is an abundant number, since it is smaller than the sum of its proper divisors (174599590).

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

121143200 is a wasteful number, since it uses less digits than its factorization.

121143200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151449 (or 151436 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 121143200 is about 11006.5071662176. The cubic root of 121143200 is about 494.8037857838.

Adding to 121143200 its reverse (2341121), we get a palindrome (123484321).

The spelling of 121143200 in words is "one hundred twenty-one million, one hundred forty-three thousand, two hundred".