11404134531 has 16 divisors (see below), whose sum is σ = 17888839200. Its totient is φ = 7155535104.

The previous prime is 11404134503. The next prime is 11404134557. The reversal of 11404134531 is 13543140411.

11404134531 is a `hidden beast` number, since 114 + 0 + 4 + 13 + 4 + 531 = 666.

11404134531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11404134531 - 2¹⁷ = 11404003459 is a prime.

It is a super-2 number, since 2×11404134531² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 11404134495 and 11404134504.

It is not an unprimeable number, because it can be changed into a prime (11404134431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12422346 + ... + 12423263.

It is an arithmetic number, because the mean of its divisors is an integer number (1118052450).

Almost surely, 2^11404134531 is an apocalyptic number.

11404134531 is a deficient number, since it is larger than the sum of its proper divisors (6484704669).

11404134531 is a wasteful number, since it uses less digits than its factorization.

11404134531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24845635 (or 24845629 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 11404134531 its reverse (13543140411), we get a palindrome (24947274942).

The spelling of 11404134531 in words is "eleven billion, four hundred four million, one hundred thirty-four thousand, five hundred thirty-one".