11043311213 has 16 divisors (see below), whose sum is σ = 12341875392. Its totient is φ = 9794400000.

The previous prime is 11043311141. The next prime is 11043311263. The reversal of 11043311213 is 31211334011.

It is a de Polignac number, because none of the positive numbers 2^k-11043311213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11043311263) 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, 403463 + ... + 429963.

It is an arithmetic number, because the mean of its divisors is an integer number (771367212).

Almost surely, 2^11043311213 is an apocalyptic number.

It is an amenable number.

11043311213 is a deficient number, since it is larger than the sum of its proper divisors (1298564179).

11043311213 is a wasteful number, since it uses less digits than its factorization.

11043311213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27436.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 11043311213 its reverse (31211334011), we get a palindrome (42254645224).

The spelling of 11043311213 in words is "eleven billion, forty-three million, three hundred eleven thousand, two hundred thirteen".