121237141 has 2 divisors, whose sum is σ = 121237142. Its totient is φ = 121237140.

The previous prime is 121237097. The next prime is 121237211. The reversal of 121237141 is 141732121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109307025 + 11930116 = 10455^2 + 3454^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121237141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121237241) 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 as a sum of consecutive naturals, namely, 60618570 + 60618571.

It is an arithmetic number, because the mean of its divisors is an integer number (60618571).

Almost surely, 2^121237141 is an apocalyptic number.

It is an amenable number.

121237141 is a deficient number, since it is larger than the sum of its proper divisors (1).

121237141 is an equidigital number, since it uses as much as digits as its factorization.

121237141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 336, while the sum is 22.

The square root of 121237141 is about 11010.7738601789. The cubic root of 121237141 is about 494.9316519582.

Adding to 121237141 its reverse (141732121), we get a palindrome (262969262).

The spelling of 121237141 in words is "one hundred twenty-one million, two hundred thirty-seven thousand, one hundred forty-one".