345022331 has 2 divisors, whose sum is σ = 345022332. Its totient is φ = 345022330.

The previous prime is 345022319. The next prime is 345022357. The reversal of 345022331 is 133220543.

It is a weak prime.

It is an emirp because it is prime and its reverse (133220543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 345022331 - 2⁶ = 345022267 is a prime.

It is a super-2 number, since 2×345022331² = 238080817777347122, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 345022297 and 345022306.

It is not a weakly prime, because it can be changed into another prime (345022631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172511165 + 172511166.

It is an arithmetic number, because the mean of its divisors is an integer number (172511166).

Almost surely, 2^345022331 is an apocalyptic number.

345022331 is a deficient number, since it is larger than the sum of its proper divisors (1).

345022331 is an equidigital number, since it uses as much as digits as its factorization.

345022331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 345022331 is about 18574.7767415923. The cubic root of 345022331 is about 701.3730404133.

Adding to 345022331 its reverse (133220543), we get a palindrome (478242874).

The spelling of 345022331 in words is "three hundred forty-five million, twenty-two thousand, three hundred thirty-one".