11541401011 has 32 divisors (see below), whose sum is σ = 13494094848. Its totient is φ = 9668229120.

The previous prime is 11541400993. The next prime is 11541401041. The reversal of 11541401011 is 11010414511.

It is a cyclic number.

It is not a de Polignac number, because 11541401011 - 2⁵ = 11541400979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11541401011.

It is not an unprimeable number, because it can be changed into a prime (11541401041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32695011 + ... + 32695363.

It is an arithmetic number, because the mean of its divisors is an integer number (421690464).

Almost surely, 2^11541401011 is an apocalyptic number.

11541401011 is a deficient number, since it is larger than the sum of its proper divisors (1952693837).

11541401011 is a wasteful number, since it uses less digits than its factorization.

11541401011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931.

The product of its (nonzero) digits is 80, while the sum is 19.

Adding to 11541401011 its reverse (11010414511), we get a palindrome (22551815522).

The spelling of 11541401011 in words is "eleven billion, five hundred forty-one million, four hundred one thousand, eleven".