121141231 has 4 divisors (see below), whose sum is σ = 123718752. Its totient is φ = 118563712.

The previous prime is 121141217. The next prime is 121141243. The reversal of 121141231 is 132141121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121141231 - 2¹⁷ = 121010159 is a prime.

It is a super-3 number, since 3×121141231³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121141271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1288690 + ... + 1288783.

It is an arithmetic number, because the mean of its divisors is an integer number (30929688).

Almost surely, 2^121141231 is an apocalyptic number.

121141231 is a deficient number, since it is larger than the sum of its proper divisors (2577521).

121141231 is an equidigital number, since it uses as much as digits as its factorization.

121141231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2577520.

The product of its digits is 48, while the sum is 16.

The square root of 121141231 is about 11006.4177187675. The cubic root of 121141231 is about 494.8011050062.

Adding to 121141231 its reverse (132141121), we get a palindrome (253282352).

The spelling of 121141231 in words is "one hundred twenty-one million, one hundred forty-one thousand, two hundred thirty-one".