11244540213 has 6 divisors (see below), whose sum is σ = 16242113654. Its totient is φ = 7496360136.

The previous prime is 11244540211. The next prime is 11244540217. The reversal of 11244540213 is 31204544211.

11244540213 is a `hidden beast` number, since 1 + 1 + 2 + 445 + 4 + 0 + 213 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8681953329 + 2562586884 = 93177^2 + 50622^2 .

It is not a de Polignac number, because 11244540213 - 2¹ = 11244540211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11244540211) 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, 624696670 + ... + 624696687.

Almost surely, 2^11244540213 is an apocalyptic number.

It is an amenable number.

11244540213 is a deficient number, since it is larger than the sum of its proper divisors (4997573441).

11244540213 is a wasteful number, since it uses less digits than its factorization.

11244540213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249393363 (or 1249393360 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The spelling of 11244540213 in words is "eleven billion, two hundred forty-four million, five hundred forty thousand, two hundred thirteen".