1323103121287 has 2 divisors, whose sum is σ = 1323103121288. Its totient is φ = 1323103121286.

The previous prime is 1323103121281. The next prime is 1323103121323. The reversal of 1323103121287 is 7821213013231.

It is a weak prime.

It is an emirp because it is prime and its reverse (7821213013231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1323103121287 - 2³ = 1323103121279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323103121281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661551560643 + 661551560644.

It is an arithmetic number, because the mean of its divisors is an integer number (661551560644).

Almost surely, 2^{1323103121287} is an apocalyptic number.

1323103121287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323103121287 is an equidigital number, since it uses as much as digits as its factorization.

1323103121287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The spelling of 1323103121287 in words is "one trillion, three hundred twenty-three billion, one hundred three million, one hundred twenty-one thousand, two hundred eighty-seven".