1121411321 has 4 divisors (see below), whose sum is σ = 1121490432. Its totient is φ = 1121332212.

The previous prime is 1121411297. The next prime is 1121411323. The reversal of 1121411321 is 1231141211.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1121411321 - 2¹⁸ = 1121149177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1121411321.

It is not an unprimeable number, because it can be changed into a prime (1121411323) 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, 11801 + ... + 48806.

It is an arithmetic number, because the mean of its divisors is an integer number (280372608).

Almost surely, 2^1121411321 is an apocalyptic number.

It is an amenable number.

1121411321 is a deficient number, since it is larger than the sum of its proper divisors (79111).

1121411321 is an equidigital number, since it uses as much as digits as its factorization.

1121411321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79110.

The product of its digits is 48, while the sum is 17.

The square root of 1121411321 is about 33487.4800634506. The cubic root of 1121411321 is about 1038.9348441786.

Adding to 1121411321 its reverse (1231141211), we get a palindrome (2352552532).

The spelling of 1121411321 in words is "one billion, one hundred twenty-one million, four hundred eleven thousand, three hundred twenty-one".