11430004581 has 16 divisors (see below), whose sum is σ = 17517249600. Its totient is φ = 7357243824.

The previous prime is 11430004567. The next prime is 11430004601. The reversal of 11430004581 is 18540003411.

It is a happy number.

It is not a de Polignac number, because 11430004581 - 2⁵ = 11430004549 is a prime.

It is a super-2 number, since 2×11430004581² (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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (11430004681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7298071 + ... + 7299636.

It is an arithmetic number, because the mean of its divisors is an integer number (1094828100).

Almost surely, 2^11430004581 is an apocalyptic number.

It is an amenable number.

11430004581 is a deficient number, since it is larger than the sum of its proper divisors (6087245019).

11430004581 is a wasteful number, since it uses less digits than its factorization.

11430004581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14597745 (or 14597739 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

Adding to 11430004581 its reverse (18540003411), we get a palindrome (29970007992).

The spelling of 11430004581 in words is "eleven billion, four hundred thirty million, four thousand, five hundred eighty-one".