231303353 has 2 divisors, whose sum is σ = 231303354. Its totient is φ = 231303352.

The previous prime is 231303337. The next prime is 231303361. The reversal of 231303353 is 353303132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 229461904 + 1841449 = 15148^2 + 1357^2 .

It is a cyclic number.

It is not a de Polignac number, because 231303353 - 2⁴ = 231303337 is a prime.

It is a super-2 number, since 2×231303353² = 107002482218085218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (231303323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115651676 + 115651677.

It is an arithmetic number, because the mean of its divisors is an integer number (115651677).

Almost surely, 2^231303353 is an apocalyptic number.

It is an amenable number.

231303353 is a deficient number, since it is larger than the sum of its proper divisors (1).

231303353 is an equidigital number, since it uses as much as digits as its factorization.

231303353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 23.

The square root of 231303353 is about 15208.6604604087. The cubic root of 231303353 is about 613.8477139330.

Adding to 231303353 its reverse (353303132), we get a palindrome (584606485).

The spelling of 231303353 in words is "two hundred thirty-one million, three hundred three thousand, three hundred fifty-three".