1121324321 has 8 divisors (see below), whose sum is σ = 1219537704. Its totient is φ = 1024819200.

The previous prime is 1121324299. The next prime is 1121324327. The reversal of 1121324321 is 1234231211.

It can be written as a sum of positive squares in 4 ways, for example, as 577921600 + 543402721 = 24040^2 + 23311^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1121324321 - 2¹⁰ = 1121323297 is a prime.

It is a super-2 number, since 2×1121324321² = 2514736465732222082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121324293 and 1121324302.

It is not an unprimeable number, because it can be changed into a prime (1121324327) 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, 425696 + ... + 428321.

It is an arithmetic number, because the mean of its divisors is an integer number (152442213).

Almost surely, 2^1121324321 is an apocalyptic number.

It is an amenable number.

1121324321 is a deficient number, since it is larger than the sum of its proper divisors (98213383).

1121324321 is a wasteful number, since it uses less digits than its factorization.

1121324321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854131.

The product of its digits is 288, while the sum is 20.

The square root of 1121324321 is about 33486.1810453208. The cubic root of 1121324321 is about 1038.9079763478.

Adding to 1121324321 its reverse (1234231211), we get a palindrome (2355555532).

The spelling of 1121324321 in words is "one billion, one hundred twenty-one million, three hundred twenty-four thousand, three hundred twenty-one".