11543411441 has 16 divisors (see below), whose sum is σ = 12420564480. Its totient is φ = 10706826240.

The previous prime is 11543411423. The next prime is 11543411479. The reversal of 11543411441 is 14411434511.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11543411441 - 2¹⁴ = 11543395057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11543411941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1745 + ... + 151953.

It is an arithmetic number, because the mean of its divisors is an integer number (776285280).

Almost surely, 2^11543411441 is an apocalyptic number.

It is an amenable number.

11543411441 is a deficient number, since it is larger than the sum of its proper divisors (877153039).

11543411441 is a wasteful number, since it uses less digits than its factorization.

11543411441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150344.

The product of its digits is 3840, while the sum is 29.

Adding to 11543411441 its reverse (14411434511), we get a palindrome (25954845952).

The spelling of 11543411441 in words is "eleven billion, five hundred forty-three million, four hundred eleven thousand, four hundred forty-one".