100023242987 has 2 divisors, whose sum is σ = 100023242988. Its totient is φ = 100023242986.

The previous prime is 100023242981. The next prime is 100023242999. The reversal of 100023242987 is 789242320001.

It is a weak prime.

It is an emirp because it is prime and its reverse (789242320001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100023242987 - 2¹⁰ = 100023241963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100023242987.

It is not a weakly prime, because it can be changed into another prime (100023242981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50011621493 + 50011621494.

It is an arithmetic number, because the mean of its divisors is an integer number (50011621494).

Almost surely, 2^100023242987 is an apocalyptic number.

100023242987 is a deficient number, since it is larger than the sum of its proper divisors (1).

100023242987 is an equidigital number, since it uses as much as digits as its factorization.

100023242987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

Adding to 100023242987 its reverse (789242320001), we get a palindrome (889265562988).

The spelling of 100023242987 in words is "one hundred billion, twenty-three million, two hundred forty-two thousand, nine hundred eighty-seven".