121334143 has 12 divisors (see below), whose sum is σ = 141323520. Its totient is φ = 103868352.

The previous prime is 121334141. The next prime is 121334167. The reversal of 121334143 is 341433121.

It is not a de Polignac number, because 121334143 - 2¹ = 121334141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121334141) 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 11 ways as a sum of consecutive naturals, for example, 72130 + ... + 73792.

It is an arithmetic number, because the mean of its divisors is an integer number (11776960).

Almost surely, 2^121334143 is an apocalyptic number.

121334143 is a deficient number, since it is larger than the sum of its proper divisors (19989377).

121334143 is a wasteful number, since it uses less digits than its factorization.

121334143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3166 (or 3159 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 121334143 is about 11015.1778469528. The cubic root of 121334143 is about 495.0636152639.

Adding to 121334143 its reverse (341433121), we get a palindrome (462767264).

The spelling of 121334143 in words is "one hundred twenty-one million, three hundred thirty-four thousand, one hundred forty-three".