1121221323 has 24 divisors (see below), whose sum is σ = 1665305616. Its totient is φ = 726408000.

The previous prime is 1121221291. The next prime is 1121221373. The reversal of 1121221323 is 3231221211.

1121221323 is a `hidden beast` number, since 1 + 121 + 221 + 323 = 666.

1121221323 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1121221323 - 2⁵ = 1121221291 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121221296 and 1121221305.

It is not an unprimeable number, because it can be changed into a prime (1121221373) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 391848 + ... + 394698.

It is an arithmetic number, because the mean of its divisors is an integer number (69387734).

Almost surely, 2^1121221323 is an apocalyptic number.

1121221323 is a deficient number, since it is larger than the sum of its proper divisors (544084293).

1121221323 is a wasteful number, since it uses less digits than its factorization.

1121221323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4075 (or 4072 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1121221323 is about 33484.6430920206. The cubic root of 1121221323 is about 1038.8761661278.

Adding to 1121221323 its reverse (3231221211), we get a palindrome (4352442534).

The spelling of 1121221323 in words is "one billion, one hundred twenty-one million, two hundred twenty-one thousand, three hundred twenty-three".