121250387 has 2 divisors, whose sum is σ = 121250388. Its totient is φ = 121250386.

The previous prime is 121250359. The next prime is 121250413. The reversal of 121250387 is 783052121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121250387 - 2⁶ = 121250323 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (121250317) 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, 60625193 + 60625194.

It is an arithmetic number, because the mean of its divisors is an integer number (60625194).

Almost surely, 2^121250387 is an apocalyptic number.

121250387 is a deficient number, since it is larger than the sum of its proper divisors (1).

121250387 is an equidigital number, since it uses as much as digits as its factorization.

121250387 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 121250387 is about 11011.3753455234. The cubic root of 121250387 is about 494.9496762091.

The spelling of 121250387 in words is "one hundred twenty-one million, two hundred fifty thousand, three hundred eighty-seven".