1111210221323 has 4 divisors (see below), whose sum is σ = 1132176451968. Its totient is φ = 1090243990680.

The previous prime is 1111210221293. The next prime is 1111210221361. The reversal of 1111210221323 is 3231220121111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1111210221323 - 2¹⁴ = 1111210204939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111210221295 and 1111210221304.

It is not an unprimeable number, because it can be changed into a prime (1111210251323) 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 3 ways as a sum of consecutive naturals, for example, 10483115243 + ... + 10483115348.

It is an arithmetic number, because the mean of its divisors is an integer number (283044112992).

Almost surely, 2^{1111210221323} is an apocalyptic number.

1111210221323 is a deficient number, since it is larger than the sum of its proper divisors (20966230645).

1111210221323 is an equidigital number, since it uses as much as digits as its factorization.

1111210221323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20966230644.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1111210221323 its reverse (3231220121111), we get a palindrome (4342430342434).

The spelling of 1111210221323 in words is "one trillion, one hundred eleven billion, two hundred ten million, two hundred twenty-one thousand, three hundred twenty-three".