981310103 has 4 divisors (see below), whose sum is σ = 991426800. Its totient is φ = 971193408.

The previous prime is 981310097. The next prime is 981310123. The reversal of 981310103 is 301013189.

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 981310103 - 2⁴ = 981310087 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 (981310123) 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 3 ways as a sum of consecutive naturals, for example, 5058203 + ... + 5058396.

It is an arithmetic number, because the mean of its divisors is an integer number (247856700).

Almost surely, 2^981310103 is an apocalyptic number.

981310103 is a deficient number, since it is larger than the sum of its proper divisors (10116697).

981310103 is a wasteful number, since it uses less digits than its factorization.

981310103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10116696.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 981310103 is about 31325.8695489846. The cubic root of 981310103 is about 993.7308137693.

The spelling of 981310103 in words is "nine hundred eighty-one million, three hundred ten thousand, one hundred three".