11303313013 has 8 divisors (see below), whose sum is σ = 11458857240. Its totient is φ = 11148403200.

The previous prime is 11303313011. The next prime is 11303313041. The reversal of 11303313013 is 31031330311.

11303313013 = 75177² + 75178².

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5651731684 + 5651581329 = 75178^2 + 75177^2 .

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 11303313013 - 2¹ = 11303313011 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 (11303313011) 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, 122670 + ... + 194047.

It is an arithmetic number, because the mean of its divisors is an integer number (1432357155).

Almost surely, 2^11303313013 is an apocalyptic number.

11303313013 is the 75178-th centered square number.

It is an amenable number.

11303313013 is a deficient number, since it is larger than the sum of its proper divisors (155544227).

11303313013 is an equidigital number, since it uses as much as digits as its factorization.

11303313013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317207.

The product of its (nonzero) digits is 243, while the sum is 19.

Adding to 11303313013 its reverse (31031330311), we get a palindrome (42334643324).

The spelling of 11303313013 in words is "eleven billion, three hundred three million, three hundred thirteen thousand, thirteen".