121257083 has 2 divisors, whose sum is σ = 121257084. Its totient is φ = 121257082.

The previous prime is 121257079. The next prime is 121257121. The reversal of 121257083 is 380752121.

It is a weak prime.

It is an emirp because it is prime and its reverse (380752121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121257083 - 2² = 121257079 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121251083) 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, 60628541 + 60628542.

It is an arithmetic number, because the mean of its divisors is an integer number (60628542).

Almost surely, 2^121257083 is an apocalyptic number.

121257083 is a deficient number, since it is larger than the sum of its proper divisors (1).

121257083 is an equidigital number, since it uses as much as digits as its factorization.

121257083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 121257083 is about 11011.6793905380. The cubic root of 121257083 is about 494.9587871684.

The spelling of 121257083 in words is "one hundred twenty-one million, two hundred fifty-seven thousand, eighty-three".