11133310231 has 4 divisors (see below), whose sum is σ = 11218297464. Its totient is φ = 11048323000.

The previous prime is 11133310229. The next prime is 11133310261. The reversal of 11133310231 is 13201333111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13201333111 = 1979 ⋅6670709.

It is a cyclic number.

It is not a de Polignac number, because 11133310231 - 2¹ = 11133310229 is a prime.

It is a super-2 number, since 2×11133310231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11133310199 and 11133310208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11133310261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42493420 + ... + 42493681.

It is an arithmetic number, because the mean of its divisors is an integer number (2804574366).

Almost surely, 2^11133310231 is an apocalyptic number.

11133310231 is a deficient number, since it is larger than the sum of its proper divisors (84987233).

11133310231 is an equidigital number, since it uses as much as digits as its factorization.

11133310231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84987232.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 11133310231 its reverse (13201333111), we get a palindrome (24334643342).

The spelling of 11133310231 in words is "eleven billion, one hundred thirty-three million, three hundred ten thousand, two hundred thirty-one".