1331322523 has 2 divisors, whose sum is σ = 1331322524. Its totient is φ = 1331322522.

The previous prime is 1331322469. The next prime is 1331322557. The reversal of 1331322523 is 3252231331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1331322523 - 2²⁹ = 794451611 is a prime.

It is not a weakly prime, because it can be changed into another prime (1331322563) 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 as a sum of consecutive naturals, namely, 665661261 + 665661262.

It is an arithmetic number, because the mean of its divisors is an integer number (665661262).

Almost surely, 2^1331322523 is an apocalyptic number.

1331322523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331322523 is an equidigital number, since it uses as much as digits as its factorization.

1331322523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 25.

The square root of 1331322523 is about 36487.2926235971. The cubic root of 1331322523 is about 1100.0888421357.

Adding to 1331322523 its reverse (3252231331), we get a palindrome (4583553854).

The spelling of 1331322523 in words is "one billion, three hundred thirty-one million, three hundred twenty-two thousand, five hundred twenty-three".