11153540243 has 2 divisors, whose sum is σ = 11153540244. Its totient is φ = 11153540242.

The previous prime is 11153540231. The next prime is 11153540267. The reversal of 11153540243 is 34204535111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11153540243 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (11153540543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5576770121 + 5576770122.

It is an arithmetic number, because the mean of its divisors is an integer number (5576770122).

Almost surely, 2^11153540243 is an apocalyptic number.

11153540243 is a deficient number, since it is larger than the sum of its proper divisors (1).

11153540243 is an equidigital number, since it uses as much as digits as its factorization.

11153540243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 11153540243 in words is "eleven billion, one hundred fifty-three million, five hundred forty thousand, two hundred forty-three".