121143342 has 8 divisors (see below), whose sum is σ = 242286696. Its totient is φ = 40381112.

The previous prime is 121143331. The next prime is 121143349. The reversal of 121143342 is 243341121.

It is a sphenic number, since it is the product of 3 distinct primes.

121143342 is an admirable number.

It is a super-3 number, since 3×121143342³ (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 (121143349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10095273 + ... + 10095284.

It is an arithmetic number, because the mean of its divisors is an integer number (30285837).

Almost surely, 2^121143342 is an apocalyptic number.

121143342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

121143342 is a wasteful number, since it uses less digits than its factorization.

121143342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20190562.

The product of its digits is 576, while the sum is 21.

The square root of 121143342 is about 11006.5136169452. The cubic root of 121143342 is about 494.8039791145.

Adding to 121143342 its reverse (243341121), we get a palindrome (364484463).

The spelling of 121143342 in words is "one hundred twenty-one million, one hundred forty-three thousand, three hundred forty-two".