231630785317 has 8 divisors (see below), whose sum is σ = 235028856960. Its totient is φ = 228236482320.

The previous prime is 231630785273. The next prime is 231630785339. The reversal of 231630785317 is 713587036132.

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 231630785317 - 2¹¹ = 231630783269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231630785387) 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, 818217 + ... + 1064302.

It is an arithmetic number, because the mean of its divisors is an integer number (29378607120).

Almost surely, 2^231630785317 is an apocalyptic number.

It is an amenable number.

231630785317 is a deficient number, since it is larger than the sum of its proper divisors (3398071643).

231630785317 is a wasteful number, since it uses less digits than its factorization.

231630785317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1884323.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 231630785317 in words is "two hundred thirty-one billion, six hundred thirty million, seven hundred eighty-five thousand, three hundred seventeen".