1331323321037 has 2 divisors, whose sum is σ = 1331323321038. Its totient is φ = 1331323321036.

The previous prime is 1331323320953. The next prime is 1331323321099. The reversal of 1331323321037 is 7301233231331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1276039085161 + 55284235876 = 1129619^2 + 235126^2 .

It is a cyclic number.

It is not a de Polignac number, because 1331323321037 - 2¹⁸ = 1331323058893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1331323320994 and 1331323321012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1331323323037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665661660518 + 665661660519.

It is an arithmetic number, because the mean of its divisors is an integer number (665661660519).

Almost surely, 2^{1331323321037} is an apocalyptic number.

It is an amenable number.

1331323321037 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331323321037 is an equidigital number, since it uses as much as digits as its factorization.

1331323321037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 32.

Adding to 1331323321037 its reverse (7301233231331), we get a palindrome (8632556552368).

The spelling of 1331323321037 in words is "one trillion, three hundred thirty-one billion, three hundred twenty-three million, three hundred twenty-one thousand, thirty-seven".