811580103 has 6 divisors (see below), whose sum is σ = 1172282384. Its totient is φ = 541053396.

The previous prime is 811580083. The next prime is 811580111. The reversal of 811580103 is 301085118.

811580103 is a `hidden beast` number, since 81 + 1 + 580 + 1 + 0 + 3 = 666.

It is not a de Polignac number, because 811580103 - 2⁹ = 811579591 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 (811580123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45087775 + ... + 45087792.

Almost surely, 2^811580103 is an apocalyptic number.

811580103 is a deficient number, since it is larger than the sum of its proper divisors (360702281).

811580103 is a wasteful number, since it uses less digits than its factorization.

811580103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90175573 (or 90175570 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 811580103 is about 28488.2449968404. The cubic root of 811580103 is about 932.7754997251.

The spelling of 811580103 in words is "eight hundred eleven million, five hundred eighty thousand, one hundred three".