989031103 has 2 divisors, whose sum is σ = 989031104. Its totient is φ = 989031102.

The previous prime is 989031097. The next prime is 989031107. The reversal of 989031103 is 301130989.

It is a strong prime.

It is an emirp because it is prime and its reverse (301130989) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-989031103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (989031107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494515551 + 494515552.

It is an arithmetic number, because the mean of its divisors is an integer number (494515552).

Almost surely, 2^989031103 is an apocalyptic number.

989031103 is a deficient number, since it is larger than the sum of its proper divisors (1).

989031103 is an equidigital number, since it uses as much as digits as its factorization.

989031103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 989031103 is about 31448.8648920752. The cubic root of 989031103 is about 996.3302504115.

The spelling of 989031103 in words is "nine hundred eighty-nine million, thirty-one thousand, one hundred three".