1331275223 has 6 divisors (see below), whose sum is σ = 1405030464. Its totient is φ = 1261207764.

The previous prime is 1331275201. The next prime is 1331275237. The reversal of 1331275223 is 3225721331.

It is not a de Polignac number, because 1331275223 - 2⁶ = 1331275159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331275273) 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 5 ways as a sum of consecutive naturals, for example, 1843511 + ... + 1844232.

It is an arithmetic number, because the mean of its divisors is an integer number (234171744).

Almost surely, 2^1331275223 is an apocalyptic number.

1331275223 is a deficient number, since it is larger than the sum of its proper divisors (73755241).

1331275223 is an equidigital number, since it uses as much as digits as its factorization.

1331275223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3687781 (or 3687762 counting only the distinct ones).

The product of its digits is 7560, while the sum is 29.

The square root of 1331275223 is about 36486.6444469754. The cubic root of 1331275223 is about 1100.0758137829.

Adding to 1331275223 its reverse (3225721331), we get a palindrome (4556996554).

The spelling of 1331275223 in words is "one billion, three hundred thirty-one million, two hundred seventy-five thousand, two hundred twenty-three".