11313221125 has 8 divisors (see below), whose sum is σ = 14118900120. Its totient is φ = 9050576800.

The previous prime is 11313221123. The next prime is 11313221137. The reversal of 11313221125 is 52112231311.

It can be written as a sum of positive squares in 4 ways, for example, as 1287804996 + 10025416129 = 35886^2 + 100127^2 .

It is not a de Polignac number, because 11313221125 - 2¹ = 11313221123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11313221096 and 11313221105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11313221123) 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, 45252760 + ... + 45253009.

It is an arithmetic number, because the mean of its divisors is an integer number (1764862515).

Almost surely, 2^11313221125 is an apocalyptic number.

It is an amenable number.

11313221125 is a deficient number, since it is larger than the sum of its proper divisors (2805678995).

11313221125 is an frugal number, since it uses more digits than its factorization.

11313221125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90505784 (or 90505774 counting only the distinct ones).

The product of its digits is 360, while the sum is 22.

Adding to 11313221125 its reverse (52112231311), we get a palindrome (63425452436).

The spelling of 11313221125 in words is "eleven billion, three hundred thirteen million, two hundred twenty-one thousand, one hundred twenty-five".