11321761313 has 8 divisors (see below), whose sum is σ = 11629370280. Its totient is φ = 11014237440.

The previous prime is 11321761309. The next prime is 11321761343. The reversal of 11321761313 is 31316712311.

It can be written as a sum of positive squares in 4 ways, for example, as 5807659264 + 5514102049 = 76208^2 + 74257^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11321761313 - 2² = 11321761309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11321761343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323033 + ... + 356361.

It is an arithmetic number, because the mean of its divisors is an integer number (1453671285).

Almost surely, 2^11321761313 is an apocalyptic number.

It is an amenable number.

11321761313 is a deficient number, since it is larger than the sum of its proper divisors (307608967).

11321761313 is an equidigital number, since it uses as much as digits as its factorization.

11321761313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42547.

The product of its digits is 2268, while the sum is 29.

The spelling of 11321761313 in words is "eleven billion, three hundred twenty-one million, seven hundred sixty-one thousand, three hundred thirteen".