11305022421 has 16 divisors (see below), whose sum is σ = 18792764928. Its totient is φ = 5872738800.

The previous prime is 11305022381. The next prime is 11305022429. The reversal of 11305022421 is 12422050311.

It is not a de Polignac number, because 11305022421 - 2⁷ = 11305022293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11305022429) 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 15 ways as a sum of consecutive naturals, for example, 24469515 + ... + 24469976.

It is an arithmetic number, because the mean of its divisors is an integer number (1174547808).

Almost surely, 2^11305022421 is an apocalyptic number.

11305022421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11305022421 is a deficient number, since it is larger than the sum of its proper divisors (7487742507).

11305022421 is a wasteful number, since it uses less digits than its factorization.

11305022421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48939512.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 11305022421 its reverse (12422050311), we get a palindrome (23727072732).

The spelling of 11305022421 in words is "eleven billion, three hundred five million, twenty-two thousand, four hundred twenty-one".