1287145283119 has 2 divisors, whose sum is σ = 1287145283120. Its totient is φ = 1287145283118.

The previous prime is 1287145283117. The next prime is 1287145283129. The reversal of 1287145283119 is 9113825417821.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1287145283119 - 2¹ = 1287145283117 is a prime.

It is a super-2 number, since 2×1287145283119² (a number of 25 digits) contains 22 as substring.

Together with 1287145283117, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1287145283117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 643572641559 + 643572641560.

It is an arithmetic number, because the mean of its divisors is an integer number (643572641560).

Almost surely, 2^{1287145283119} is an apocalyptic number.

1287145283119 is a deficient number, since it is larger than the sum of its proper divisors (1).

1287145283119 is an equidigital number, since it uses as much as digits as its factorization.

1287145283119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 52.

The spelling of 1287145283119 in words is "one trillion, two hundred eighty-seven billion, one hundred forty-five million, two hundred eighty-three thousand, one hundred nineteen".