1330231233 has 4 divisors (see below), whose sum is σ = 1773641648. Its totient is φ = 886820820.

The previous prime is 1330231193. The next prime is 1330231237. The reversal of 1330231233 is 3321320331.

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 not a de Polignac number, because 1330231233 - 2²¹ = 1328134081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1330231237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221705203 + ... + 221705208.

It is an arithmetic number, because the mean of its divisors is an integer number (443410412).

Almost surely, 2^1330231233 is an apocalyptic number.

It is an amenable number.

1330231233 is a deficient number, since it is larger than the sum of its proper divisors (443410415).

1330231233 is an equidigital number, since it uses as much as digits as its factorization.

1330231233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443410414.

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 1330231233 is about 36472.3351733886. The cubic root of 1330231233 is about 1099.7881776702.

Adding to 1330231233 its reverse (3321320331), we get a palindrome (4651551564).

The spelling of 1330231233 in words is "one billion, three hundred thirty million, two hundred thirty-one thousand, two hundred thirty-three".