981319103 has 4 divisors (see below), whose sum is σ = 981502368. Its totient is φ = 981135840.

The previous prime is 981319091. The next prime is 981319109. The reversal of 981319103 is 301913189.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301913189 = 67 ⋅4506167.

It is a cyclic number.

It is not a de Polignac number, because 981319103 - 2¹² = 981315007 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 (981319109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83351 + ... + 94392.

It is an arithmetic number, because the mean of its divisors is an integer number (245375592).

Almost surely, 2^981319103 is an apocalyptic number.

981319103 is a deficient number, since it is larger than the sum of its proper divisors (183265).

981319103 is a wasteful number, since it uses less digits than its factorization.

981319103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183264.

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 981319103 is about 31326.0131998951. The cubic root of 981319103 is about 993.7338517318.

The spelling of 981319103 in words is "nine hundred eighty-one million, three hundred nineteen thousand, one hundred three".