11173630243 has 4 divisors (see below), whose sum is σ = 11248621200. Its totient is φ = 11098639288.

The previous prime is 11173630177. The next prime is 11173630309. The reversal of 11173630243 is 34203637111.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (11173630177) and next prime (11173630309).

It is not a de Polignac number, because 11173630243 - 2¹⁷ = 11173499171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11173630343) 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, 37495255 + ... + 37495552.

It is an arithmetic number, because the mean of its divisors is an integer number (2812155300).

Almost surely, 2^11173630243 is an apocalyptic number.

11173630243 is a deficient number, since it is larger than the sum of its proper divisors (74990957).

11173630243 is an equidigital number, since it uses as much as digits as its factorization.

11173630243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74990956.

The product of its (nonzero) digits is 9072, while the sum is 31.

The spelling of 11173630243 in words is "eleven billion, one hundred seventy-three million, six hundred thirty thousand, two hundred forty-three".