981308458903 has 4 divisors (see below), whose sum is σ = 995954853880. Its totient is φ = 966662063928.

The previous prime is 981308458901. The next prime is 981308458927. The reversal of 981308458903 is 309854803189.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 309854803189 = 47 ⋅6592655387.

It is a cyclic number.

It is not a de Polignac number, because 981308458903 - 2¹ = 981308458901 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 (981308458901) 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, 7323197388 + ... + 7323197521.

It is an arithmetic number, because the mean of its divisors is an integer number (248988713470).

Almost surely, 2^981308458903 is an apocalyptic number.

981308458903 is a deficient number, since it is larger than the sum of its proper divisors (14646394977).

981308458903 is a wasteful number, since it uses less digits than its factorization.

981308458903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14646394976.

The product of its (nonzero) digits is 7464960, while the sum is 58.

The spelling of 981308458903 in words is "nine hundred eighty-one billion, three hundred eight million, four hundred fifty-eight thousand, nine hundred three".