231742247317 has 16 divisors (see below), whose sum is σ = 281418544512. Its totient is φ = 186291095040.

The previous prime is 231742247299. The next prime is 231742247339. The reversal of 231742247317 is 713742247132.

It is a cyclic number.

It is not a de Polignac number, because 231742247317 - 2⁷ = 231742247189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231742247357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3406984 + ... + 3474337.

It is an arithmetic number, because the mean of its divisors is an integer number (17588659032).

Almost surely, 2^231742247317 is an apocalyptic number.

It is an amenable number.

231742247317 is a deficient number, since it is larger than the sum of its proper divisors (49676297195).

231742247317 is a wasteful number, since it uses less digits than its factorization.

231742247317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6881628.

The product of its digits is 395136, while the sum is 43.

The spelling of 231742247317 in words is "two hundred thirty-one billion, seven hundred forty-two million, two hundred forty-seven thousand, three hundred seventeen".