231346307 has 2 divisors, whose sum is σ = 231346308. Its totient is φ = 231346306.

The previous prime is 231346277. The next prime is 231346327. The reversal of 231346307 is 703643132.

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-231346307 is a prime.

It is a super-2 number, since 2×231346307² = 107042227525076498, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231346307.

It is not a weakly prime, because it can be changed into another prime (231346327) 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, 115673153 + 115673154.

It is an arithmetic number, because the mean of its divisors is an integer number (115673154).

Almost surely, 2^231346307 is an apocalyptic number.

231346307 is a deficient number, since it is larger than the sum of its proper divisors (1).

231346307 is an equidigital number, since it uses as much as digits as its factorization.

231346307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 231346307 is about 15210.0725507803. The cubic root of 231346307 is about 613.8857096103.

Adding to 231346307 its reverse (703643132), we get a palindrome (934989439).

The spelling of 231346307 in words is "two hundred thirty-one million, three hundred forty-six thousand, three hundred seven".