11534402211 has 32 divisors (see below), whose sum is σ = 15903433728.
Its totient is φ = 7431951360.
The previous prime is 11534402207. The next prime is 11534402213. The reversal of 11534402211 is 11220443511.
Adding to 11534402211 its reverse (11220443511), we get a palindrome (22754845722).
It is not a de Polignac number, because 11534402211 - 22 = 11534402207 is a prime.
It is not an unprimeable number, because it can be changed into a prime (11534402213) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10571776 + ... + 10572866.
It is an arithmetic number, because the mean of its divisors is an integer number (496982304).
Almost surely, 211534402211 is an apocalyptic number.
11534402211 is a deficient number, since it is larger than the sum of its proper divisors (4369031517).
11534402211 is a wasteful number, since it uses less digits than its factorization.
11534402211 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2011.
The product of its (nonzero) digits is 960, while the sum is 24.
The spelling of 11534402211 in words is "eleven billion, five hundred thirty-four million, four hundred two thousand, two hundred eleven".