12355331 has 2 divisors, whose sum is σ = 12355332. Its totient is φ = 12355330.

The previous prime is 12355303. The next prime is 12355333. The reversal of 12355331 is 13355321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12355331 - 2¹⁴ = 12338947 is a prime.

It is a super-2 number, since 2×12355331² = 305308408239122, which contains 22 as substring.

Together with 12355333, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12355297 and 12355306.

It is not a weakly prime, because it can be changed into another prime (12355333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6177665 + 6177666.

It is an arithmetic number, because the mean of its divisors is an integer number (6177666).

Almost surely, 2^12355331 is an apocalyptic number.

12355331 is a deficient number, since it is larger than the sum of its proper divisors (1).

12355331 is an equidigital number, since it uses as much as digits as its factorization.

12355331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1350, while the sum is 23.

The square root of 12355331 is about 3515.0150782038. The cubic root of 12355331 is about 231.1806399241.

The spelling of 12355331 in words is "twelve million, three hundred fifty-five thousand, three hundred thirty-one".