11773213313 has 4 divisors (see below), whose sum is σ = 11775753648. Its totient is φ = 11770672980.

The previous prime is 11773213271. The next prime is 11773213349. The reversal of 11773213313 is 31331237711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11773213313 - 2⁸ = 11773213057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11773213313.

It is not an unprimeable number, because it can be changed into a prime (11773213913) 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, 1263203 + ... + 1272488.

It is an arithmetic number, because the mean of its divisors is an integer number (2943938412).

Almost surely, 2^11773213313 is an apocalyptic number.

It is an amenable number.

11773213313 is a deficient number, since it is larger than the sum of its proper divisors (2540335).

11773213313 is an equidigital number, since it uses as much as digits as its factorization.

11773213313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2540334.

The product of its digits is 7938, while the sum is 32.

The spelling of 11773213313 in words is "eleven billion, seven hundred seventy-three million, two hundred thirteen thousand, three hundred thirteen".