121141240 has 32 divisors (see below), whose sum is σ = 297347760. Its totient is φ = 44051200.

The previous prime is 121141217. The next prime is 121141243. The reversal of 121141240 is 42141121.

It is a happy number.

It is a super-3 number, since 3×121141240³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121141243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137221 + ... + 138100.

Almost surely, 2^121141240 is an apocalyptic number.

121141240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121141240 is an abundant number, since it is smaller than the sum of its proper divisors (176206520).

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

121141240 is a wasteful number, since it uses less digits than its factorization.

121141240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275343 (or 275339 counting only the distinct ones).

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

The square root of 121141240 is about 11006.4181276199. The cubic root of 121141240 is about 494.8011172597.

Adding to 121141240 its reverse (42141121), we get a palindrome (163282361).

The spelling of 121141240 in words is "one hundred twenty-one million, one hundred forty-one thousand, two hundred forty".