11543053136 has 20 divisors (see below), whose sum is σ = 22408619700. Its totient is φ = 5760183552.

The previous prime is 11543053127. The next prime is 11543053153. The reversal of 11543053136 is 63135034511.

It can be written as a sum of positive squares in 2 ways, for example, as 5004713536 + 6538339600 = 70744^2 + 80860^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 700541 + ... + 716828.

It is an arithmetic number, because the mean of its divisors is an integer number (1120430985).

Almost surely, 2^11543053136 is an apocalyptic number.

11543053136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11543053136 is a deficient number, since it is larger than the sum of its proper divisors (10865566564).

11543053136 is a wasteful number, since it uses less digits than its factorization.

11543053136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417886 (or 1417880 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

Adding to 11543053136 its reverse (63135034511), we get a palindrome (74678087647).

The spelling of 11543053136 in words is "eleven billion, five hundred forty-three million, fifty-three thousand, one hundred thirty-six".