9231985906903 has 4 divisors (see below), whose sum is σ = 9481499039560. Its totient is φ = 8982472774248.

The previous prime is 9231985906883. The next prime is 9231985906943. The reversal of 9231985906903 is 3096095891329.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9231985906903 - 2⁹ = 9231985906391 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 (9231985906943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124756566273 + ... + 124756566346.

It is an arithmetic number, because the mean of its divisors is an integer number (2370374759890).

Almost surely, 2^{9231985906903} is an apocalyptic number.

9231985906903 is a deficient number, since it is larger than the sum of its proper divisors (249513132657).

9231985906903 is a wasteful number, since it uses less digits than its factorization.

9231985906903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249513132656.

The product of its (nonzero) digits is 28343520, while the sum is 64.

The spelling of 9231985906903 in words is "nine trillion, two hundred thirty-one billion, nine hundred eighty-five million, nine hundred six thousand, nine hundred three".