1330232231 has 4 divisors (see below), whose sum is σ = 1352778600. Its totient is φ = 1307685864.

The previous prime is 1330232173. The next prime is 1330232243. The reversal of 1330232231 is 1322320331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1330232231 - 2¹⁸ = 1329970087 is a prime.

It is a super-2 number, since 2×1330232231² = 3539035576782474722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330232261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11273096 + ... + 11273213.

It is an arithmetic number, because the mean of its divisors is an integer number (338194650).

Almost surely, 2^1330232231 is an apocalyptic number.

1330232231 is a deficient number, since it is larger than the sum of its proper divisors (22546369).

1330232231 is an equidigital number, since it uses as much as digits as its factorization.

1330232231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22546368.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1330232231 is about 36472.3488549888. The cubic root of 1330232231 is about 1099.7884527072.

Adding to 1330232231 its reverse (1322320331), we get a palindrome (2652552562).

The spelling of 1330232231 in words is "one billion, three hundred thirty million, two hundred thirty-two thousand, two hundred thirty-one".