1020000101987 has 2 divisors, whose sum is σ = 1020000101988. Its totient is φ = 1020000101986.

The previous prime is 1020000101971. The next prime is 1020000102053. The reversal of 1020000101987 is 7891010000201.

It is a weak prime.

It is an emirp because it is prime and its reverse (7891010000201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1020000101987 - 2⁴ = 1020000101971 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020000101917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510000050993 + 510000050994.

It is an arithmetic number, because the mean of its divisors is an integer number (510000050994).

Almost surely, 2^{1020000101987} is an apocalyptic number.

1020000101987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020000101987 is an equidigital number, since it uses as much as digits as its factorization.

1020000101987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 29.

The spelling of 1020000101987 in words is "one trillion, twenty billion, one hundred one thousand, nine hundred eighty-seven".