11893052205 has 30 divisors (see below), whose sum is σ = 21323332206. Its totient is φ = 6341790672.

The previous prime is 11893052203. The next prime is 11893052207. The reversal of 11893052205 is 50225039811.

It is an interprime number because it is at equal distance from previous prime (11893052203) and next prime (11893052207).

It can be written as a sum of positive squares in only one way, i.e., 9514441764 + 2378610441 = 97542^2 + 48771^2 .

It is not a de Polignac number, because 11893052205 - 2¹ = 11893052203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11893052205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11893052203) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 2191986 + ... + 2197404.

Almost surely, 2^11893052205 is an apocalyptic number.

11893052205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11893052205 is a deficient number, since it is larger than the sum of its proper divisors (9430280001).

11893052205 is an frugal number, since it uses more digits than its factorization.

11893052205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10855 (or 5427 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The spelling of 11893052205 in words is "eleven billion, eight hundred ninety-three million, fifty-two thousand, two hundred five".