11223101321 has 4 divisors (see below), whose sum is σ = 11711062272. Its totient is φ = 10735140372.

The previous prime is 11223101303. The next prime is 11223101359. The reversal of 11223101321 is 12310132211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11223101321 - 2²² = 11218907017 is a prime.

It is a super-2 number, since 2×11223101321² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11223101321.

It is not an unprimeable number, because it can be changed into a prime (11223101371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243980441 + ... + 243980486.

It is an arithmetic number, because the mean of its divisors is an integer number (2927765568).

Almost surely, 2^11223101321 is an apocalyptic number.

It is an amenable number.

11223101321 is a deficient number, since it is larger than the sum of its proper divisors (487960951).

11223101321 is an equidigital number, since it uses as much as digits as its factorization.

11223101321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487960950.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11223101321 its reverse (12310132211), we get a palindrome (23533233532).

The spelling of 11223101321 in words is "eleven billion, two hundred twenty-three million, one hundred one thousand, three hundred twenty-one".