11325122231 has 4 divisors (see below), whose sum is σ = 11355004200. Its totient is φ = 11295240264.

The previous prime is 11325122153. The next prime is 11325122251. The reversal of 11325122231 is 13222152311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11325122231 - 2²² = 11320927927 is a prime.

It is a super-2 number, since 2×11325122231² (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 = 11325122197 and 11325122206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11325122251) 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, 14940416 + ... + 14941173.

It is an arithmetic number, because the mean of its divisors is an integer number (2838751050).

Almost surely, 2^11325122231 is an apocalyptic number.

11325122231 is a deficient number, since it is larger than the sum of its proper divisors (29881969).

11325122231 is an equidigital number, since it uses as much as digits as its factorization.

11325122231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29881968.

The product of its digits is 720, while the sum is 23.

Adding to 11325122231 its reverse (13222152311), we get a palindrome (24547274542).

The spelling of 11325122231 in words is "eleven billion, three hundred twenty-five million, one hundred twenty-two thousand, two hundred thirty-one".