1331322061177 has 2 divisors, whose sum is σ = 1331322061178. Its totient is φ = 1331322061176.

The previous prime is 1331322061163. The next prime is 1331322061231. The reversal of 1331322061177 is 7711602231331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 817485414201 + 513836646976 = 904149^2 + 716824^2 .

It is a cyclic number.

It is not a de Polignac number, because 1331322061177 - 2³⁹ = 781566247289 is a prime.

It is not a weakly prime, because it can be changed into another prime (1331322061117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665661030588 + 665661030589.

It is an arithmetic number, because the mean of its divisors is an integer number (665661030589).

Almost surely, 2^{1331322061177} is an apocalyptic number.

It is an amenable number.

1331322061177 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331322061177 is an equidigital number, since it uses as much as digits as its factorization.

1331322061177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 37.

The spelling of 1331322061177 in words is "one trillion, three hundred thirty-one billion, three hundred twenty-two million, sixty-one thousand, one hundred seventy-seven".