101002109987 has 2 divisors, whose sum is σ = 101002109988. Its totient is φ = 101002109986.

The previous prime is 101002109969. The next prime is 101002110037. The reversal of 101002109987 is 789901200101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101002109987 - 2¹² = 101002105891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101002109987.

It is not a weakly prime, because it can be changed into another prime (101002109917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50501054993 + 50501054994.

It is an arithmetic number, because the mean of its divisors is an integer number (50501054994).

Almost surely, 2^101002109987 is an apocalyptic number.

101002109987 is a deficient number, since it is larger than the sum of its proper divisors (1).

101002109987 is an equidigital number, since it uses as much as digits as its factorization.

101002109987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 38.

The spelling of 101002109987 in words is "one hundred one billion, two million, one hundred nine thousand, nine hundred eighty-seven".