1093203081 has 8 divisors (see below), whose sum is σ = 1619560160. Its totient is φ = 728802036.

The previous prime is 1093203079. The next prime is 1093203101. The reversal of 1093203081 is 1803023901.

It is not a de Polignac number, because 1093203081 - 2¹ = 1093203079 is a prime.

It is a super-2 number, since 2×1093203081² = 2390185952615785122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 40489003 = 1093203081 / (1 + 0 + 9 + 3 + 2 + 0 + 3 + 0 + 8 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1093203011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20244475 + ... + 20244528.

It is an arithmetic number, because the mean of its divisors is an integer number (202445020).

Almost surely, 2^1093203081 is an apocalyptic number.

It is an amenable number.

1093203081 is a deficient number, since it is larger than the sum of its proper divisors (526357079).

1093203081 is an equidigital number, since it uses as much as digits as its factorization.

1093203081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40489012 (or 40489006 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1093203081 is about 33063.6217163214. The cubic root of 1093203081 is about 1030.1495622826.

Adding to 1093203081 its reverse (1803023901), we get a palindrome (2896226982).

The spelling of 1093203081 in words is "one billion, ninety-three million, two hundred three thousand, eighty-one".