121341279 has 16 divisors (see below), whose sum is σ = 163548000. Its totient is φ = 80019456.

The previous prime is 121341217. The next prime is 121341287. The reversal of 121341279 is 972143121.

It is not a de Polignac number, because 121341279 - 2¹⁶ = 121275743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121341289) 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 15 ways as a sum of consecutive naturals, for example, 157407 + ... + 158175.

It is an arithmetic number, because the mean of its divisors is an integer number (10221750).

Almost surely, 2^121341279 is an apocalyptic number.

121341279 is a deficient number, since it is larger than the sum of its proper divisors (42206721).

121341279 is a wasteful number, since it uses less digits than its factorization.

121341279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274.

The product of its digits is 3024, while the sum is 30.

The square root of 121341279 is about 11015.5017588851. The cubic root of 121341279 is about 495.0733204318.

The spelling of 121341279 in words is "one hundred twenty-one million, three hundred forty-one thousand, two hundred seventy-nine".