121116529 has 2 divisors, whose sum is σ = 121116530. Its totient is φ = 121116528.

The previous prime is 121116521. The next prime is 121116553. The reversal of 121116529 is 925611121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81866304 + 39250225 = 9048^2 + 6265^2 .

It is a cyclic number.

It is not a de Polignac number, because 121116529 - 2³ = 121116521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121116497 and 121116506.

It is not a weakly prime, because it can be changed into another prime (121116521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60558264 + 60558265.

It is an arithmetic number, because the mean of its divisors is an integer number (60558265).

Almost surely, 2^121116529 is an apocalyptic number.

It is an amenable number.

121116529 is a deficient number, since it is larger than the sum of its proper divisors (1).

121116529 is an equidigital number, since it uses as much as digits as its factorization.

121116529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 28.

The square root of 121116529 is about 11005.2954980773. The cubic root of 121116529 is about 494.7674709642.

The spelling of 121116529 in words is "one hundred twenty-one million, one hundred sixteen thousand, five hundred twenty-nine".