231313241 has 8 divisors (see below), whose sum is σ = 232634184. Its totient is φ = 229996800.

The previous prime is 231313223. The next prime is 231313301. The reversal of 231313241 is 142313132.

It can be written as a sum of positive squares in 4 ways, for example, as 190302025 + 41011216 = 13795^2 + 6404^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231313241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231313741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158471 + ... + 159923.

It is an arithmetic number, because the mean of its divisors is an integer number (29079273).

Almost surely, 2^231313241 is an apocalyptic number.

It is an amenable number.

231313241 is a deficient number, since it is larger than the sum of its proper divisors (1320943).

231313241 is a wasteful number, since it uses less digits than its factorization.

231313241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251.

The product of its digits is 432, while the sum is 20.

The square root of 231313241 is about 15208.9855348738. The cubic root of 231313241 is about 613.8564609451.

Adding to 231313241 its reverse (142313132), we get a palindrome (373626373).

The spelling of 231313241 in words is "two hundred thirty-one million, three hundred thirteen thousand, two hundred forty-one".