231038280217 has 8 divisors (see below), whose sum is σ = 232449408000. Its totient is φ = 229629654144.

The previous prime is 231038280199. The next prime is 231038280227. The reversal of 231038280217 is 712082830132.

231038280217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-231038280217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231038280227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439993 + ... + 809734.

It is an arithmetic number, because the mean of its divisors is an integer number (29056176000).

Almost surely, 2^231038280217 is an apocalyptic number.

It is an amenable number.

231038280217 is a deficient number, since it is larger than the sum of its proper divisors (1411127783).

231038280217 is a wasteful number, since it uses less digits than its factorization.

231038280217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250855.

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 231038280217 in words is "two hundred thirty-one billion, thirty-eight million, two hundred eighty thousand, two hundred seventeen".