121143300 has 144 divisors (see below), whose sum is σ = 371559552. Its totient is φ = 30412800.

The previous prime is 121143293. The next prime is 121143301. The reversal of 121143300 is 3341121.

It is a super-3 number, since 3×121143300³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 121143300.

It is not an unprimeable number, because it can be changed into a prime (121143301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 669210 + ... + 669390.

Almost surely, 2^121143300 is an apocalyptic number.

121143300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121143300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185779776).

121143300 is an abundant number, since it is smaller than the sum of its proper divisors (250416252).

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

121143300 is a wasteful number, since it uses less digits than its factorization.

121143300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 121143300 is about 11006.5117089839. The cubic root of 121143300 is about 494.8039219322.

Adding to 121143300 its reverse (3341121), we get a palindrome (124484421).

The spelling of 121143300 in words is "one hundred twenty-one million, one hundred forty-three thousand, three hundred".