11433122231 has 4 divisors (see below), whose sum is σ = 11433505512. Its totient is φ = 11432738952.

The previous prime is 11433122167. The next prime is 11433122237. The reversal of 11433122231 is 13222133411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13222133411 = 1117 ⋅11837183.

It is a cyclic number.

It is not a de Polignac number, because 11433122231 - 2⁶ = 11433122167 is a prime.

It is a super-2 number, since 2×11433122231² (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 = 11433122197 and 11433122206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11433122237) 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, 142736 + ... + 207941.

It is an arithmetic number, because the mean of its divisors is an integer number (2858376378).

Almost surely, 2^11433122231 is an apocalyptic number.

11433122231 is a deficient number, since it is larger than the sum of its proper divisors (383281).

11433122231 is an equidigital number, since it uses as much as digits as its factorization.

11433122231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383280.

The product of its digits is 864, while the sum is 23.

Adding to 11433122231 its reverse (13222133411), we get a palindrome (24655255642).

The spelling of 11433122231 in words is "eleven billion, four hundred thirty-three million, one hundred twenty-two thousand, two hundred thirty-one".