1134321321 has 16 divisors (see below), whose sum is σ = 1775206784. Its totient is φ = 630664704.

The previous prime is 1134321313. The next prime is 1134321329. The reversal of 1134321321 is 1231234311.

It is an interprime number because it is at equal distance from previous prime (1134321313) and next prime (1134321329).

It is not a de Polignac number, because 1134321321 - 2³ = 1134321313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1134321329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 729160 + ... + 730713.

It is an arithmetic number, because the mean of its divisors is an integer number (110950424).

Almost surely, 2^1134321321 is an apocalyptic number.

It is an amenable number.

1134321321 is a deficient number, since it is larger than the sum of its proper divisors (640885463).

1134321321 is a wasteful number, since it uses less digits than its factorization.

1134321321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459920.

The product of its digits is 432, while the sum is 21.

The square root of 1134321321 is about 33679.6870680237. The cubic root of 1134321321 is about 1042.9064780233.

Adding to 1134321321 its reverse (1231234311), we get a palindrome (2365555632).

The spelling of 1134321321 in words is "one billion, one hundred thirty-four million, three hundred twenty-one thousand, three hundred twenty-one".