121304387 has 2 divisors, whose sum is σ = 121304388. Its totient is φ = 121304386.

The previous prime is 121304383. The next prime is 121304399. The reversal of 121304387 is 783403121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121304387 - 2² = 121304383 is a prime.

It is not a weakly prime, because it can be changed into another prime (121304383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60652193 + 60652194.

It is an arithmetic number, because the mean of its divisors is an integer number (60652194).

Almost surely, 2^121304387 is an apocalyptic number.

121304387 is a deficient number, since it is larger than the sum of its proper divisors (1).

121304387 is an equidigital number, since it uses as much as digits as its factorization.

121304387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 121304387 is about 11013.8270823543. The cubic root of 121304387 is about 495.0231421347.

The spelling of 121304387 in words is "one hundred twenty-one million, three hundred four thousand, three hundred eighty-seven".