121411240 has 32 divisors (see below), whose sum is σ = 274929480. Its totient is φ = 48252672.

The previous prime is 121411237. The next prime is 121411249. The reversal of 121411240 is 42114121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 110796676 + 10614564 = 10526^2 + 3258^2 .

It is not an unprimeable number, because it can be changed into a prime (121411249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3387 + ... + 15946.

Almost surely, 2^121411240 is an apocalyptic number.

121411240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121411240 is an abundant number, since it is smaller than the sum of its proper divisors (153518240).

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

121411240 is a wasteful number, since it uses less digits than its factorization.

121411240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19501 (or 19497 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 121411240 is about 11018.6768715667. The cubic root of 121411240 is about 495.1684492849.

Adding to 121411240 its reverse (42114121), we get a palindrome (163525361).

The spelling of 121411240 in words is "one hundred twenty-one million, four hundred eleven thousand, two hundred forty".