11154324044421 has 12 divisors (see below), whose sum is σ = 16812314502048. Its totient is φ = 7112902289064.

The previous prime is 11154324044417. The next prime is 11154324044489. The reversal of 11154324044421 is 12444042345111.

11154324044421 is a `hidden beast` number, since 1 + 1 + 154 + 3 + 2 + 40 + 44 + 421 = 666.

It is not a de Polignac number, because 11154324044421 - 2² = 11154324044417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11154324044401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26942811495 + ... + 26942811908.

It is an arithmetic number, because the mean of its divisors is an integer number (1401026208504).

Almost surely, 2^{11154324044421} is an apocalyptic number.

It is an amenable number.

11154324044421 is a deficient number, since it is larger than the sum of its proper divisors (5657990457627).

11154324044421 is a wasteful number, since it uses less digits than its factorization.

11154324044421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53885623432 (or 53885623429 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

Adding to 11154324044421 its reverse (12444042345111), we get a palindrome (23598366389532).

The spelling of 11154324044421 in words is "eleven trillion, one hundred fifty-four billion, three hundred twenty-four million, forty-four thousand, four hundred twenty-one".