1312296128977 has 2 divisors, whose sum is σ = 1312296128978. Its totient is φ = 1312296128976.

The previous prime is 1312296128953. The next prime is 1312296128987. The reversal of 1312296128977 is 7798216922131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1171191470656 + 141104658321 = 1082216^2 + 375639^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312296128977 - 2³¹ = 1310148645329 is a prime.

It is a super-2 number, since 2×1312296128977² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1312296128987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656148064488 + 656148064489.

It is an arithmetic number, because the mean of its divisors is an integer number (656148064489).

Almost surely, 2^{1312296128977} is an apocalyptic number.

It is an amenable number.

1312296128977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312296128977 is an equidigital number, since it uses as much as digits as its factorization.

1312296128977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4572288, while the sum is 58.

The spelling of 1312296128977 in words is "one trillion, three hundred twelve billion, two hundred ninety-six million, one hundred twenty-eight thousand, nine hundred seventy-seven".