11321313509 has 8 divisors (see below), whose sum is σ = 12776404320. Its totient is φ = 9937202800.

The previous prime is 11321313481. The next prime is 11321313569. The reversal of 11321313509 is 90531312311.

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 11321313509 - 2¹² = 11321309413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11321313569) 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, 17744687 + ... + 17745324.

It is an arithmetic number, because the mean of its divisors is an integer number (1597050540).

Almost surely, 2^11321313509 is an apocalyptic number.

It is an amenable number.

11321313509 is a deficient number, since it is larger than the sum of its proper divisors (1455090811).

11321313509 is a wasteful number, since it uses less digits than its factorization.

11321313509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35490051.

The product of its (nonzero) digits is 2430, while the sum is 29.

The spelling of 11321313509 in words is "eleven billion, three hundred twenty-one million, three hundred thirteen thousand, five hundred nine".