1310131021333 has 2 divisors, whose sum is σ = 1310131021334. Its totient is φ = 1310131021332.

The previous prime is 1310131021321. The next prime is 1310131021357. The reversal of 1310131021333 is 3331201310131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1307073152529 + 3057868804 = 1143273^2 + 55298^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310131021333 - 2¹³ = 1310131013141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1310131021363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655065510666 + 655065510667.

It is an arithmetic number, because the mean of its divisors is an integer number (655065510667).

Almost surely, 2^{1310131021333} is an apocalyptic number.

It is an amenable number.

1310131021333 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310131021333 is an equidigital number, since it uses as much as digits as its factorization.

1310131021333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 1310131021333 its reverse (3331201310131), we get a palindrome (4641332331464).

The spelling of 1310131021333 in words is "one trillion, three hundred ten billion, one hundred thirty-one million, twenty-one thousand, three hundred thirty-three".