11154344213 has 2 divisors, whose sum is σ = 11154344214. Its totient is φ = 11154344212.

The previous prime is 11154344209. The next prime is 11154344251. The reversal of 11154344213 is 31244345111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6721048324 + 4433295889 = 81982^2 + 66583^2 .

It is a cyclic number.

It is not a de Polignac number, because 11154344213 - 2² = 11154344209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11154344413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5577172106 + 5577172107.

It is an arithmetic number, because the mean of its divisors is an integer number (5577172107).

Almost surely, 2^11154344213 is an apocalyptic number.

It is an amenable number.

11154344213 is a deficient number, since it is larger than the sum of its proper divisors (1).

11154344213 is an equidigital number, since it uses as much as digits as its factorization.

11154344213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 29.

Adding to 11154344213 its reverse (31244345111), we get a palindrome (42398689324).

The spelling of 11154344213 in words is "eleven billion, one hundred fifty-four million, three hundred forty-four thousand, two hundred thirteen".