11141471440 has 40 divisors (see below), whose sum is σ = 28258825248. Its totient is φ = 4051443840.

The previous prime is 11141471417. The next prime is 11141471449. The reversal of 11141471440 is 4417414111.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 11141471399 and 11141471408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11141471449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6329502 + ... + 6331261.

Almost surely, 2^11141471440 is an apocalyptic number.

11141471440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11141471440 is an abundant number, since it is smaller than the sum of its proper divisors (17117353808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11141471440 is a wasteful number, since it uses less digits than its factorization.

11141471440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12660787 (or 12660781 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 28.

Adding to 11141471440 its reverse (4417414111), we get a palindrome (15558885551).

The spelling of 11141471440 in words is "eleven billion, one hundred forty-one million, four hundred seventy-one thousand, four hundred forty".