11773317373 has 4 divisors (see below), whose sum is σ = 11777596668. Its totient is φ = 11769038080.

The previous prime is 11773317359. The next prime is 11773317389. The reversal of 11773317373 is 37371337711.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9611253369 + 2162064004 = 98037^2 + 46498^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11773317373 is a prime.

It is a super-2 number, since 2×11773317373² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11773315373) 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, 2135518 + ... + 2141023.

It is an arithmetic number, because the mean of its divisors is an integer number (2944399167).

Almost surely, 2^11773317373 is an apocalyptic number.

It is an amenable number.

11773317373 is a deficient number, since it is larger than the sum of its proper divisors (4279295).

11773317373 is an equidigital number, since it uses as much as digits as its factorization.

11773317373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4279294.

The product of its digits is 194481, while the sum is 43.

The spelling of 11773317373 in words is "eleven billion, seven hundred seventy-three million, three hundred seventeen thousand, three hundred seventy-three".