11506709343 has 4 divisors (see below), whose sum is σ = 15342279128. Its totient is φ = 7671139560.

The previous prime is 11506709329. The next prime is 11506709351. The reversal of 11506709343 is 34390760511.

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

It is not a de Polignac number, because 11506709343 - 2⁸ = 11506709087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11506709303) 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, 1917784888 + ... + 1917784893.

It is an arithmetic number, because the mean of its divisors is an integer number (3835569782).

Almost surely, 2^11506709343 is an apocalyptic number.

11506709343 is a deficient number, since it is larger than the sum of its proper divisors (3835569785).

11506709343 is an equidigital number, since it uses as much as digits as its factorization.

11506709343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3835569784.

The product of its (nonzero) digits is 68040, while the sum is 39.

The spelling of 11506709343 in words is "eleven billion, five hundred six million, seven hundred nine thousand, three hundred forty-three".