11231320404303 has 8 divisors (see below), whose sum is σ = 16638993191600. Its totient is φ = 7487546936184.

The previous prime is 11231320404299. The next prime is 11231320404341. The reversal of 11231320404303 is 30340402313211.

It is a happy number.

11231320404303 is a `hidden beast` number, since 1 + 1 + 2 + 31 + 320 + 4 + 0 + 4 + 303 = 666.

It is not a de Polignac number, because 11231320404303 - 2² = 11231320404299 is a prime.

It is a super-2 number, since 2×11231320404303² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 415974829789 = 11231320404303 / (1 + 1 + 2 + 3 + 1 + 3 + 2 + 0 + 4 + 0 + 4 + 3 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231320404503) 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, 207987414868 + ... + 207987414921.

It is an arithmetic number, because the mean of its divisors is an integer number (2079874148950).

Almost surely, 2^{11231320404303} is an apocalyptic number.

11231320404303 is a deficient number, since it is larger than the sum of its proper divisors (5407672787297).

11231320404303 is an equidigital number, since it uses as much as digits as its factorization.

11231320404303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415974829798 (or 415974829792 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 11231320404303 its reverse (30340402313211), we get a palindrome (41571722717514).

The spelling of 11231320404303 in words is "eleven trillion, two hundred thirty-one billion, three hundred twenty million, four hundred four thousand, three hundred three".