31982516903 has 4 divisors (see below), whose sum is σ = 31987464288. Its totient is φ = 31977569520.

The previous prime is 31982516879. The next prime is 31982516957. The reversal of 31982516903 is 30961528913.

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 31982516903 - 2³⁴ = 14802647719 is a prime.

It is a super-2 number, since 2×31982516903² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31982516963) 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, 2463983 + ... + 2476928.

It is an arithmetic number, because the mean of its divisors is an integer number (7996866072).

Almost surely, 2^31982516903 is an apocalyptic number.

31982516903 is a deficient number, since it is larger than the sum of its proper divisors (4947385).

31982516903 is an equidigital number, since it uses as much as digits as its factorization.

31982516903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4947384.

The product of its (nonzero) digits is 349920, while the sum is 47.

The spelling of 31982516903 in words is "thirty-one billion, nine hundred eighty-two million, five hundred sixteen thousand, nine hundred three".