1009185094403 has 4 divisors (see below), whose sum is σ = 1009366184688. Its totient is φ = 1009004004120.

The previous prime is 1009185094391. The next prime is 1009185094427. The reversal of 1009185094403 is 3044905819001.

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 1009185094403 - 2¹⁶ = 1009185028867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1009185024403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90536783 + ... + 90547928.

It is an arithmetic number, because the mean of its divisors is an integer number (252341546172).

Almost surely, 2^{1009185094403} is an apocalyptic number.

1009185094403 is a deficient number, since it is larger than the sum of its proper divisors (181090285).

1009185094403 is an equidigital number, since it uses as much as digits as its factorization.

1009185094403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181090284.

The product of its (nonzero) digits is 155520, while the sum is 44.

The spelling of 1009185094403 in words is "one trillion, nine billion, one hundred eighty-five million, ninety-four thousand, four hundred three".