1121413321 has 4 divisors (see below), whose sum is σ = 1281615232. Its totient is φ = 961211412.

The previous prime is 1121413309. The next prime is 1121413351. The reversal of 1121413321 is 1233141211.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1233141211 = 19 ⋅64902169.

It is not a de Polignac number, because 1121413321 - 2¹⁷ = 1121282249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121413351) 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, 80100945 + ... + 80100958.

It is an arithmetic number, because the mean of its divisors is an integer number (320403808).

Almost surely, 2^1121413321 is an apocalyptic number.

It is an amenable number.

1121413321 is a deficient number, since it is larger than the sum of its proper divisors (160201911).

1121413321 is an equidigital number, since it uses as much as digits as its factorization.

1121413321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160201910.

The product of its digits is 144, while the sum is 19.

The square root of 1121413321 is about 33487.5099253438. The cubic root of 1121413321 is about 1038.9354618136.

Adding to 1121413321 its reverse (1233141211), we get a palindrome (2354554532).

The spelling of 1121413321 in words is "one billion, one hundred twenty-one million, four hundred thirteen thousand, three hundred twenty-one".