11541400434 has 24 divisors (see below), whose sum is σ = 25063346880. Its totient is φ = 3838367448.

The previous prime is 11541400427. The next prime is 11541400459. The reversal of 11541400434 is 43400414511.

It is a junction number, because it is equal to n+sod(n) for n = 11541400398 and 11541400407.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 722382 + ... + 738185.

It is an arithmetic number, because the mean of its divisors is an integer number (1044306120).

Almost surely, 2^11541400434 is an apocalyptic number.

11541400434 is an abundant number, since it is smaller than the sum of its proper divisors (13521946446).

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

11541400434 is a wasteful number, since it uses less digits than its factorization.

11541400434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461014 (or 1461011 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 11541400434 its reverse (43400414511), we get a palindrome (54941814945).

The spelling of 11541400434 in words is "eleven billion, five hundred forty-one million, four hundred thousand, four hundred thirty-four".