11131024421 has 8 divisors (see below), whose sum is σ = 12195054144. Its totient is φ = 10075681120.

The previous prime is 11131024379. The next prime is 11131024439. The reversal of 11131024421 is 12442013111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11131024421 - 2⁶ = 11131024357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11131024393 and 11131024402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131024621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2168921 + ... + 2174046.

It is an arithmetic number, because the mean of its divisors is an integer number (1524381768).

Almost surely, 2^11131024421 is an apocalyptic number.

11131024421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11131024421 is a deficient number, since it is larger than the sum of its proper divisors (1064029723).

11131024421 is a wasteful number, since it uses less digits than its factorization.

11131024421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4343211.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 11131024421 its reverse (12442013111), we get a palindrome (23573037532).

The spelling of 11131024421 in words is "eleven billion, one hundred thirty-one million, twenty-four thousand, four hundred twenty-one".