11231303013 has 48 divisors (see below), whose sum is σ = 18759476736. Its totient is φ = 6342312960.

The previous prime is 11231302967. The next prime is 11231303051. The reversal of 11231303013 is 31030313211.

It is a happy number.

It is not a de Polignac number, because 11231303013 - 2¹⁸ = 11231040869 is a prime.

It is a super-2 number, since 2×11231303013² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231303053) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7521895 + ... + 7523387.

It is an arithmetic number, because the mean of its divisors is an integer number (390822432).

Almost surely, 2^11231303013 is an apocalyptic number.

It is an amenable number.

11231303013 is a deficient number, since it is larger than the sum of its proper divisors (7528173723).

11231303013 is a wasteful number, since it uses less digits than its factorization.

11231303013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2834 (or 2831 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 11231303013 its reverse (31030313211), we get a palindrome (42261616224).

The spelling of 11231303013 in words is "eleven billion, two hundred thirty-one million, three hundred three thousand, thirteen".