100023110021987 has 2 divisors, whose sum is σ = 100023110021988. Its totient is φ = 100023110021986.

The previous prime is 100023110021951. The next prime is 100023110022067. The reversal of 100023110021987 is 789120011320001.

It is a weak prime.

It is an emirp because it is prime and its reverse (789120011320001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100023110021987 - 2¹⁰ = 100023110020963 is a prime.

It is not a weakly prime, because it can be changed into another prime (100023118021987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50011555010993 + 50011555010994.

It is an arithmetic number, because the mean of its divisors is an integer number (50011555010994).

Almost surely, 2^{100023110021987} is an apocalyptic number.

100023110021987 is a deficient number, since it is larger than the sum of its proper divisors (1).

100023110021987 is an equidigital number, since it uses as much as digits as its factorization.

100023110021987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 35.

Adding to 100023110021987 its reverse (789120011320001), we get a palindrome (889143121341988).

The spelling of 100023110021987 in words is "one hundred trillion, twenty-three billion, one hundred ten million, twenty-one thousand, nine hundred eighty-seven".