121303331 has 2 divisors, whose sum is σ = 121303332. Its totient is φ = 121303330.

The previous prime is 121303327. The next prime is 121303333. The reversal of 121303331 is 133303121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121303331 - 2² = 121303327 is a prime.

It is a super-2 number, since 2×121303331² = 29428996223391122, which contains 22 as substring.

Together with 121303333, 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 (121303333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60651665 + 60651666.

It is an arithmetic number, because the mean of its divisors is an integer number (60651666).

Almost surely, 2^121303331 is an apocalyptic number.

121303331 is a deficient number, since it is larger than the sum of its proper divisors (1).

121303331 is an equidigital number, since it uses as much as digits as its factorization.

121303331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 121303331 is about 11013.7791425105. The cubic root of 121303331 is about 495.0217056768.

Adding to 121303331 its reverse (133303121), we get a palindrome (254606452).

The spelling of 121303331 in words is "one hundred twenty-one million, three hundred three thousand, three hundred thirty-one".