231305353 has 8 divisors (see below), whose sum is σ = 238966016. Its totient is φ = 223657200.

The previous prime is 231305341. The next prime is 231305357. The reversal of 231305353 is 353503132.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231305353 - 2²¹ = 229208201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231305357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47950 + ... + 52552.

It is an arithmetic number, because the mean of its divisors is an integer number (29870752).

Almost surely, 2^231305353 is an apocalyptic number.

It is an amenable number.

231305353 is a deficient number, since it is larger than the sum of its proper divisors (7660663).

231305353 is a wasteful number, since it uses less digits than its factorization.

231305353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6255.

The product of its (nonzero) digits is 4050, while the sum is 25.

The square root of 231305353 is about 15208.7262122770. The cubic root of 231305353 is about 613.8494831707.

Adding to 231305353 its reverse (353503132), we get a palindrome (584808485).

The spelling of 231305353 in words is "two hundred thirty-one million, three hundred five thousand, three hundred fifty-three".