1311446356061 has 2 divisors, whose sum is σ = 1311446356062. Its totient is φ = 1311446356060.

The previous prime is 1311446355997. The next prime is 1311446356091. The reversal of 1311446356061 is 1606536441131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1155001584100 + 156444771961 = 1074710^2 + 395531^2 .

It is an emirp because it is prime and its reverse (1606536441131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1311446356061 - 2⁶ = 1311446355997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1311446356091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655723178030 + 655723178031.

It is an arithmetic number, because the mean of its divisors is an integer number (655723178031).

Almost surely, 2^{1311446356061} is an apocalyptic number.

It is an amenable number.

1311446356061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311446356061 is an equidigital number, since it uses as much as digits as its factorization.

1311446356061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 1311446356061 in words is "one trillion, three hundred eleven billion, four hundred forty-six million, three hundred fifty-six thousand, sixty-one".