121858411 has 2 divisors, whose sum is σ = 121858412. Its totient is φ = 121858410.

The previous prime is 121858391. The next prime is 121858417. The reversal of 121858411 is 114858121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121858411 - 2⁵ = 121858379 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121858417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60929205 + 60929206.

It is an arithmetic number, because the mean of its divisors is an integer number (60929206).

Almost surely, 2^121858411 is an apocalyptic number.

121858411 is a deficient number, since it is larger than the sum of its proper divisors (1).

121858411 is an equidigital number, since it uses as much as digits as its factorization.

121858411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2560, while the sum is 31.

The square root of 121858411 is about 11038.9497235924. The cubic root of 121858411 is about 495.7756244836.

The spelling of 121858411 in words is "one hundred twenty-one million, eight hundred fifty-eight thousand, four hundred eleven".