346231331 has 2 divisors, whose sum is σ = 346231332. Its totient is φ = 346231330.

The previous prime is 346231321. The next prime is 346231339. The reversal of 346231331 is 133132643.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-346231331 is a prime.

It is a super-2 number, since 2×346231331² = 239752269132063122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 346231331.

It is not a weakly prime, because it can be changed into another prime (346231339) 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, 173115665 + 173115666.

It is an arithmetic number, because the mean of its divisors is an integer number (173115666).

Almost surely, 2^346231331 is an apocalyptic number.

346231331 is a deficient number, since it is larger than the sum of its proper divisors (1).

346231331 is an equidigital number, since it uses as much as digits as its factorization.

346231331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 26.

The square root of 346231331 is about 18607.2924145347. The cubic root of 346231331 is about 702.1913173787.

Adding to 346231331 its reverse (133132643), we get a palindrome (479363974).

The spelling of 346231331 in words is "three hundred forty-six million, two hundred thirty-one thousand, three hundred thirty-one".