121115369 has 2 divisors, whose sum is σ = 121115370. Its totient is φ = 121115368.

The previous prime is 121115341. The next prime is 121115387. The reversal of 121115369 is 963511121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104305369 + 16810000 = 10213^2 + 4100^2 .

It is a cyclic number.

It is not a de Polignac number, because 121115369 - 2¹² = 121111273 is a prime.

It is a super-2 number, since 2×121115369² = 29337865216012322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121115389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60557684 + 60557685.

It is an arithmetic number, because the mean of its divisors is an integer number (60557685).

Almost surely, 2^121115369 is an apocalyptic number.

It is an amenable number.

121115369 is a deficient number, since it is larger than the sum of its proper divisors (1).

121115369 is an equidigital number, since it uses as much as digits as its factorization.

121115369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 29.

The square root of 121115369 is about 11005.2427960495. The cubic root of 121115369 is about 494.7658914052.

The spelling of 121115369 in words is "one hundred twenty-one million, one hundred fifteen thousand, three hundred sixty-nine".