11303172443 has 4 divisors (see below), whose sum is σ = 11692937040. Its totient is φ = 10913407848.

The previous prime is 11303172431. The next prime is 11303172473. The reversal of 11303172443 is 34427130311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34427130311 = 7 ⋅4918161473.

It is a cyclic number.

It is not a de Polignac number, because 11303172443 - 2¹⁰ = 11303171419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 389764567 = 11303172443 / (1 + 1 + 3 + 0 + 3 + 1 + 7 + 2 + 4 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11303172473) 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, 194882255 + ... + 194882312.

It is an arithmetic number, because the mean of its divisors is an integer number (2923234260).

Almost surely, 2^11303172443 is an apocalyptic number.

11303172443 is a deficient number, since it is larger than the sum of its proper divisors (389764597).

11303172443 is an equidigital number, since it uses as much as digits as its factorization.

11303172443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389764596.

The product of its (nonzero) digits is 6048, while the sum is 29.

The spelling of 11303172443 in words is "eleven billion, three hundred three million, one hundred seventy-two thousand, four hundred forty-three".