121135087 has 2 divisors, whose sum is σ = 121135088. Its totient is φ = 121135086.

The previous prime is 121135061. The next prime is 121135109. The reversal of 121135087 is 780531121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121135087 - 2¹⁹ = 120610799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121105087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60567543 + 60567544.

It is an arithmetic number, because the mean of its divisors is an integer number (60567544).

Almost surely, 2^121135087 is an apocalyptic number.

121135087 is a deficient number, since it is larger than the sum of its proper divisors (1).

121135087 is an equidigital number, since it uses as much as digits as its factorization.

121135087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 121135087 is about 11006.1386053420. The cubic root of 121135087 is about 494.7927398130.

The spelling of 121135087 in words is "one hundred twenty-one million, one hundred thirty-five thousand, eighty-seven".