11112121325 has 6 divisors (see below), whose sum is σ = 13779030474. Its totient is φ = 8889697040.

The previous prime is 11112121271. The next prime is 11112121327. The reversal of 11112121325 is 52312121111.

It can be written as a sum of positive squares in 3 ways, for example, as 1406325001 + 9705796324 = 37501^2 + 98518^2 .

It is not a de Polignac number, because 11112121325 - 2¹² = 11112117229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11112121297 and 11112121306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112121327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 222242402 + ... + 222242451.

It is an arithmetic number, because the mean of its divisors is an integer number (2296505079).

Almost surely, 2^11112121325 is an apocalyptic number.

It is an amenable number.

11112121325 is a deficient number, since it is larger than the sum of its proper divisors (2666909149).

11112121325 is an equidigital number, since it uses as much as digits as its factorization.

11112121325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444484863 (or 444484858 counting only the distinct ones).

The product of its digits is 120, while the sum is 20.

Adding to 11112121325 its reverse (52312121111), we get a palindrome (63424242436).

The spelling of 11112121325 in words is "eleven billion, one hundred twelve million, one hundred twenty-one thousand, three hundred twenty-five".