11031020225 has 12 divisors (see below), whose sum is σ = 14273181696. Its totient is φ = 8441128080.

The previous prime is 11031020213. The next prime is 11031020227. The reversal of 11031020225 is 52202013011.

It is a happy number.

It is not a de Polignac number, because 11031020225 - 2⁸ = 11031019969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11031020227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9591617 + ... + 9592766.

It is an arithmetic number, because the mean of its divisors is an integer number (1189431808).

Almost surely, 2^11031020225 is an apocalyptic number.

It is an amenable number.

11031020225 is a deficient number, since it is larger than the sum of its proper divisors (3242161471).

11031020225 is a wasteful number, since it uses less digits than its factorization.

11031020225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19184416 (or 19184411 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 11031020225 its reverse (52202013011), we get a palindrome (63233033236).

The spelling of 11031020225 in words is "eleven billion, thirty-one million, twenty thousand, two hundred twenty-five".