231040713 has 8 divisors (see below), whose sum is σ = 310933728. Its totient is φ = 152587424.

The previous prime is 231040697. The next prime is 231040717. The reversal of 231040713 is 317040132.

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 231040713 - 2⁴ = 231040697 is a prime.

It is a super-2 number, since 2×231040713² = 106759622127096738, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 231040713.

It is not an unprimeable number, because it can be changed into a prime (231040717) 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, 359556 + ... + 360197.

It is an arithmetic number, because the mean of its divisors is an integer number (38866716).

Almost surely, 2^231040713 is an apocalyptic number.

It is an amenable number.

231040713 is a deficient number, since it is larger than the sum of its proper divisors (79893015).

231040713 is a wasteful number, since it uses less digits than its factorization.

231040713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719863.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 231040713 is about 15200.0234539293. The cubic root of 231040713 is about 613.6152889652.

Adding to 231040713 its reverse (317040132), we get a palindrome (548080845).

The spelling of 231040713 in words is "two hundred thirty-one million, forty thousand, seven hundred thirteen".