11205253543 has 8 divisors (see below), whose sum is σ = 12224989440. Its totient is φ = 10185697080.

The previous prime is 11205253511. The next prime is 11205253603. The reversal of 11205253543 is 34535250211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11205253543 - 2⁵ = 11205253511 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 (11205253043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108546 + ... + 184912.

It is an arithmetic number, because the mean of its divisors is an integer number (1528123680).

Almost surely, 2^11205253543 is an apocalyptic number.

11205253543 is a deficient number, since it is larger than the sum of its proper divisors (1019735897).

11205253543 is a wasteful number, since it uses less digits than its factorization.

11205253543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89717.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 11205253543 in words is "eleven billion, two hundred five million, two hundred fifty-three thousand, five hundred forty-three".