11054440213 has 16 divisors (see below), whose sum is σ = 11999398320. Its totient is φ = 10142617600.

The previous prime is 11054440207. The next prime is 11054440219. The reversal of 11054440213 is 31204445011.

It is an interprime number because it is at equal distance from previous prime (11054440207) and next prime (11054440219).

It can be written as a sum of positive squares in 8 ways, for example, as 173238244 + 10881201969 = 13162^2 + 104313^2 .

It is a cyclic number.

It is not a de Polignac number, because 11054440213 - 2⁵ = 11054440181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11054440219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1026903 + ... + 1037611.

It is an arithmetic number, because the mean of its divisors is an integer number (749962395).

Almost surely, 2^11054440213 is an apocalyptic number.

It is an amenable number.

11054440213 is a deficient number, since it is larger than the sum of its proper divisors (944958107).

11054440213 is a wasteful number, since it uses less digits than its factorization.

11054440213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12248.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 11054440213 its reverse (31204445011), we get a palindrome (42258885224).

The spelling of 11054440213 in words is "eleven billion, fifty-four million, four hundred forty thousand, two hundred thirteen".