1312157763601 has 2 divisors, whose sum is σ = 1312157763602. Its totient is φ = 1312157763600.

The previous prime is 1312157763571. The next prime is 1312157763641. The reversal of 1312157763601 is 1063677512131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1205656704576 + 106501059025 = 1098024^2 + 326345^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312157763601 - 2⁵ = 1312157763569 is a prime.

It is not a weakly prime, because it can be changed into another prime (1312157763641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656078881800 + 656078881801.

It is an arithmetic number, because the mean of its divisors is an integer number (656078881801).

Almost surely, 2^{1312157763601} is an apocalyptic number.

It is an amenable number.

1312157763601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312157763601 is an equidigital number, since it uses as much as digits as its factorization.

1312157763601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 158760, while the sum is 43.

The spelling of 1312157763601 in words is "one trillion, three hundred twelve billion, one hundred fifty-seven million, seven hundred sixty-three thousand, six hundred one".