1020102119987 has 2 divisors, whose sum is σ = 1020102119988. Its totient is φ = 1020102119986.

The previous prime is 1020102119963. The next prime is 1020102119989. The reversal of 1020102119987 is 7899112010201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020102119987 is a prime.

Together with 1020102119989, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1020102119989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510051059993 + 510051059994.

It is an arithmetic number, because the mean of its divisors is an integer number (510051059994).

Almost surely, 2^{1020102119987} is an apocalyptic number.

1020102119987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020102119987 is an equidigital number, since it uses as much as digits as its factorization.

1020102119987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 41.

The spelling of 1020102119987 in words is "one trillion, twenty billion, one hundred two million, one hundred nineteen thousand, nine hundred eighty-seven".