121098311 has 2 divisors, whose sum is σ = 121098312. Its totient is φ = 121098310.

The previous prime is 121098283. The next prime is 121098317. The reversal of 121098311 is 113890121.

It is a strong prime.

It is an emirp because it is prime and its reverse (113890121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121098311 - 2¹⁰ = 121097287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121098317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60549155 + 60549156.

It is an arithmetic number, because the mean of its divisors is an integer number (60549156).

Almost surely, 2^121098311 is an apocalyptic number.

121098311 is a deficient number, since it is larger than the sum of its proper divisors (1).

121098311 is an equidigital number, since it uses as much as digits as its factorization.

121098311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 26.

The square root of 121098311 is about 11004.4677744996. The cubic root of 121098311 is about 494.7426625535.

The spelling of 121098311 in words is "one hundred twenty-one million, ninety-eight thousand, three hundred eleven".