11325343121 has 4 divisors (see below), whose sum is σ = 11601571044. Its totient is φ = 11049115200.

The previous prime is 11325343097. The next prime is 11325343153. The reversal of 11325343121 is 12134352311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12134352311 = 82591 ⋅146921.

It can be written as a sum of positive squares in 2 ways, for example, as 6866442496 + 4458900625 = 82864^2 + 66775^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11325343121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11325348121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138113900 + ... + 138113981.

It is an arithmetic number, because the mean of its divisors is an integer number (2900392761).

Almost surely, 2^11325343121 is an apocalyptic number.

It is an amenable number.

11325343121 is a deficient number, since it is larger than the sum of its proper divisors (276227923).

11325343121 is an equidigital number, since it uses as much as digits as its factorization.

11325343121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276227922.

The product of its digits is 2160, while the sum is 26.

Adding to 11325343121 its reverse (12134352311), we get a palindrome (23459695432).

The spelling of 11325343121 in words is "eleven billion, three hundred twenty-five million, three hundred forty-three thousand, one hundred twenty-one".