1331455155113 has 2 divisors, whose sum is σ = 1331455155114. Its totient is φ = 1331455155112.

The previous prime is 1331455155091. The next prime is 1331455155119. The reversal of 1331455155113 is 3115515541331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 935547414169 + 395907740944 = 967237^2 + 629212^2 .

It is an emirp because it is prime and its reverse (3115515541331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1331455155113 - 2¹⁶ = 1331455089577 is a prime.

It is not a weakly prime, because it can be changed into another prime (1331455155119) 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, 665727577556 + 665727577557.

It is an arithmetic number, because the mean of its divisors is an integer number (665727577557).

Almost surely, 2^{1331455155113} is an apocalyptic number.

It is an amenable number.

1331455155113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331455155113 is an equidigital number, since it uses as much as digits as its factorization.

1331455155113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67500, while the sum is 38.

The spelling of 1331455155113 in words is "one trillion, three hundred thirty-one billion, four hundred fifty-five million, one hundred fifty-five thousand, one hundred thirteen".