11213443025 has 6 divisors (see below), whose sum is σ = 13904669382. Its totient is φ = 8970754400.

The previous prime is 11213443019. The next prime is 11213443061. The reversal of 11213443025 is 52034431211.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2745026449 + 8468416576 = 52393^2 + 92024^2 .

It is not a de Polignac number, because 11213443025 - 2⁸ = 11213442769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11213442985 and 11213443003.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 224268836 + ... + 224268885.

It is an arithmetic number, because the mean of its divisors is an integer number (2317444897).

Almost surely, 2^11213443025 is an apocalyptic number.

It is an amenable number.

11213443025 is a deficient number, since it is larger than the sum of its proper divisors (2691226357).

11213443025 is an equidigital number, since it uses as much as digits as its factorization.

11213443025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448537731 (or 448537726 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 11213443025 its reverse (52034431211), we get a palindrome (63247874236).

The spelling of 11213443025 in words is "eleven billion, two hundred thirteen million, four hundred forty-three thousand, twenty-five".