10101020987 has 2 divisors, whose sum is σ = 10101020988. Its totient is φ = 10101020986.

The previous prime is 10101020983. The next prime is 10101021017. The reversal of 10101020987 is 78902010101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10101020987 - 2² = 10101020983 is a prime.

It is not a weakly prime, because it can be changed into another prime (10101020981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050510493 + 5050510494.

It is an arithmetic number, because the mean of its divisors is an integer number (5050510494).

Almost surely, 2^10101020987 is an apocalyptic number.

10101020987 is a deficient number, since it is larger than the sum of its proper divisors (1).

10101020987 is an equidigital number, since it uses as much as digits as its factorization.

10101020987 is an evil number, because the sum of its binary digits is even.

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

The spelling of 10101020987 in words is "ten billion, one hundred one million, twenty thousand, nine hundred eighty-seven".