11213115443 has 2 divisors, whose sum is σ = 11213115444. Its totient is φ = 11213115442.

The previous prime is 11213115371. The next prime is 11213115479. The reversal of 11213115443 is 34451131211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11213115443 - 2²⁰ = 11212066867 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (11213118443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606557721 + 5606557722.

It is an arithmetic number, because the mean of its divisors is an integer number (5606557722).

Almost surely, 2^11213115443 is an apocalyptic number.

11213115443 is a deficient number, since it is larger than the sum of its proper divisors (1).

11213115443 is an equidigital number, since it uses as much as digits as its factorization.

11213115443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 26.

Adding to 11213115443 its reverse (34451131211), we get a palindrome (45664246654).

The spelling of 11213115443 in words is "eleven billion, two hundred thirteen million, one hundred fifteen thousand, four hundred forty-three".