1331322337 has 2 divisors, whose sum is σ = 1331322338. Its totient is φ = 1331322336.

The previous prime is 1331322313. The next prime is 1331322341. The reversal of 1331322337 is 7332231331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1189974016 + 141348321 = 34496^2 + 11889^2 .

It is a cyclic number.

It is not a de Polignac number, because 1331322337 - 2¹⁵ = 1331289569 is a prime.

It is not a weakly prime, because it can be changed into another prime (1331322347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665661168 + 665661169.

It is an arithmetic number, because the mean of its divisors is an integer number (665661169).

Almost surely, 2^1331322337 is an apocalyptic number.

It is an amenable number.

1331322337 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331322337 is an equidigital number, since it uses as much as digits as its factorization.

1331322337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804, while the sum is 28.

The square root of 1331322337 is about 36487.2900747644. The cubic root of 1331322337 is about 1100.0887909043.

Adding to 1331322337 its reverse (7332231331), we get a palindrome (8663553668).

The spelling of 1331322337 in words is "one billion, three hundred thirty-one million, three hundred twenty-two thousand, three hundred thirty-seven".