11021310421 has 8 divisors (see below), whose sum is σ = 12049562304. Its totient is φ = 9997444320.

The previous prime is 11021310403. The next prime is 11021310427. The reversal of 11021310421 is 12401312011.

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 11021310421 - 2¹¹ = 11021308373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11021310395 and 11021310404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021310427) 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, 1091185 + ... + 1101238.

It is an arithmetic number, because the mean of its divisors is an integer number (1506195288).

Almost surely, 2^11021310421 is an apocalyptic number.

11021310421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11021310421 is a deficient number, since it is larger than the sum of its proper divisors (1028251883).

11021310421 is a wasteful number, since it uses less digits than its factorization.

11021310421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2192891.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11021310421 its reverse (12401312011), we get a palindrome (23422622432).

The spelling of 11021310421 in words is "eleven billion, twenty-one million, three hundred ten thousand, four hundred twenty-one".