11171203534 has 4 divisors (see below), whose sum is σ = 16756805304. Its totient is φ = 5585601766.

The previous prime is 11171203531. The next prime is 11171203541. The reversal of 11171203534 is 43530217111.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11171203531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2792800882 + ... + 2792800885.

It is an arithmetic number, because the mean of its divisors is an integer number (4189201326).

Almost surely, 2^11171203534 is an apocalyptic number.

11171203534 is a deficient number, since it is larger than the sum of its proper divisors (5585601770).

11171203534 is an equidigital number, since it uses as much as digits as its factorization.

11171203534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5585601769.

The product of its (nonzero) digits is 2520, while the sum is 28.

The spelling of 11171203534 in words is "eleven billion, one hundred seventy-one million, two hundred three thousand, five hundred thirty-four".