1121021323 has 8 divisors (see below), whose sum is σ = 1137826368. Its totient is φ = 1104294984.

The previous prime is 1121021281. The next prime is 1121021333. The reversal of 1121021323 is 3231201211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121021323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121021297 and 1121021306.

It is not an unprimeable number, because it can be changed into a prime (1121021333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9340 + ... + 48262.

It is an arithmetic number, because the mean of its divisors is an integer number (142228296).

Almost surely, 2^1121021323 is an apocalyptic number.

1121021323 is a deficient number, since it is larger than the sum of its proper divisors (16805045).

1121021323 is an equidigital number, since it uses as much as digits as its factorization.

1121021323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39353.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1121021323 is about 33481.6565151726. The cubic root of 1121021323 is about 1038.8143919463.

Adding to 1121021323 its reverse (3231201211), we get a palindrome (4352222534).

The spelling of 1121021323 in words is "one billion, one hundred twenty-one million, twenty-one thousand, three hundred twenty-three".