121310302331 has 2 divisors, whose sum is σ = 121310302332. Its totient is φ = 121310302330.

The previous prime is 121310302327. The next prime is 121310302339. The reversal of 121310302331 is 133203013121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121310302331 - 2² = 121310302327 is a prime.

It is a super-2 number, since 2×121310302331² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121310302339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60655151165 + 60655151166.

It is an arithmetic number, because the mean of its divisors is an integer number (60655151166).

Almost surely, 2^121310302331 is an apocalyptic number.

121310302331 is a deficient number, since it is larger than the sum of its proper divisors (1).

121310302331 is an equidigital number, since it uses as much as digits as its factorization.

121310302331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 121310302331 its reverse (133203013121), we get a palindrome (254513315452).

The spelling of 121310302331 in words is "one hundred twenty-one billion, three hundred ten million, three hundred two thousand, three hundred thirty-one".