121143361 has 2 divisors, whose sum is σ = 121143362. Its totient is φ = 121143360.

The previous prime is 121143349. The next prime is 121143383. The reversal of 121143361 is 163341121.

It is an a-pointer prime, because the next prime (121143383) can be obtained adding 121143361 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77000625 + 44142736 = 8775^2 + 6644^2 .

It is a cyclic number.

It is not a de Polignac number, because 121143361 - 2⁹ = 121142849 is a prime.

It is a super-3 number, since 3×121143361³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (121143301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60571680 + 60571681.

It is an arithmetic number, because the mean of its divisors is an integer number (60571681).

Almost surely, 2^121143361 is an apocalyptic number.

It is an amenable number.

121143361 is a deficient number, since it is larger than the sum of its proper divisors (1).

121143361 is an equidigital number, since it uses as much as digits as its factorization.

121143361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 22.

The square root of 121143361 is about 11006.5144800704. The cubic root of 121143361 is about 494.8040049827.

Adding to 121143361 its reverse (163341121), we get a palindrome (284484482).

The spelling of 121143361 in words is "one hundred twenty-one million, one hundred forty-three thousand, three hundred sixty-one".