1133213321 has 4 divisors (see below), whose sum is σ = 1149174144. Its totient is φ = 1117252500.

The previous prime is 1133213317. The next prime is 1133213351. The reversal of 1133213321 is 1233123311.

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.

It is a cyclic number.

It is not a de Polignac number, because 1133213321 - 2² = 1133213317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1133213293 and 1133213302.

It is not an unprimeable number, because it can be changed into a prime (1133213311) 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, 7980305 + ... + 7980446.

It is an arithmetic number, because the mean of its divisors is an integer number (287293536).

Almost surely, 2^1133213321 is an apocalyptic number.

It is an amenable number.

1133213321 is a deficient number, since it is larger than the sum of its proper divisors (15960823).

1133213321 is an equidigital number, since it uses as much as digits as its factorization.

1133213321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15960822.

The product of its digits is 324, while the sum is 20.

The square root of 1133213321 is about 33663.2339652625. The cubic root of 1133213321 is about 1042.5667986036.

Adding to 1133213321 its reverse (1233123311), we get a palindrome (2366336632).

The spelling of 1133213321 in words is "one billion, one hundred thirty-three million, two hundred thirteen thousand, three hundred twenty-one".