121340141 has 6 divisors (see below), whose sum is σ = 131392170. Its totient is φ = 112006128.

The previous prime is 121340123. The next prime is 121340159. The reversal of 121340141 is 141043121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121340123) and next prime (121340159).

It can be written as a sum of positive squares in 3 ways, for example, as 9424900 + 111915241 = 3070^2 + 10579^2 .

It is not a de Polignac number, because 121340141 - 2¹⁰ = 121339117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121340641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 358826 + ... + 359163.

It is an arithmetic number, because the mean of its divisors is an integer number (21898695).

Almost surely, 2^121340141 is an apocalyptic number.

It is an amenable number.

121340141 is a deficient number, since it is larger than the sum of its proper divisors (10052029).

121340141 is an equidigital number, since it uses as much as digits as its factorization.

121340141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718015 (or 718002 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 121340141 is about 11015.4501042853. The cubic root of 121340141 is about 495.0717727442.

Adding to 121340141 its reverse (141043121), we get a palindrome (262383262).

The spelling of 121340141 in words is "one hundred twenty-one million, three hundred forty thousand, one hundred forty-one".