121030331 has 2 divisors, whose sum is σ = 121030332. Its totient is φ = 121030330.

The previous prime is 121030309. The next prime is 121030333. The reversal of 121030331 is 133030121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121030331 - 2⁶ = 121030267 is a prime.

It is a super-2 number, since 2×121030331² = 29296682043939122, which contains 22 as substring.

Together with 121030333, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121030333) 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, 60515165 + 60515166.

It is an arithmetic number, because the mean of its divisors is an integer number (60515166).

Almost surely, 2^121030331 is an apocalyptic number.

121030331 is a deficient number, since it is larger than the sum of its proper divisors (1).

121030331 is an equidigital number, since it uses as much as digits as its factorization.

121030331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 121030331 is about 11001.3785954307. The cubic root of 121030331 is about 494.6500686347.

Adding to 121030331 its reverse (133030121), we get a palindrome (254060452).

The spelling of 121030331 in words is "one hundred twenty-one million, thirty thousand, three hundred thirty-one".