100020110020989 has 4 divisors (see below), whose sum is σ = 133360146694656. Its totient is φ = 66680073347324.

The previous prime is 100020110020973. The next prime is 100020110021011. The reversal of 100020110020989 is 989020011020001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100020110020989 - 2⁴ = 100020110020973 is a prime.

It is a super-2 number, since 2×100020110020989² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100020110020489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16670018336829 + ... + 16670018336834.

It is an arithmetic number, because the mean of its divisors is an integer number (33340036673664).

Almost surely, 2^{100020110020989} is an apocalyptic number.

It is an amenable number.

100020110020989 is a deficient number, since it is larger than the sum of its proper divisors (33340036673667).

100020110020989 is an equidigital number, since it uses as much as digits as its factorization.

100020110020989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33340036673666.

The product of its (nonzero) digits is 2592, while the sum is 33.

The spelling of 100020110020989 in words is "one hundred trillion, twenty billion, one hundred ten million, twenty thousand, nine hundred eighty-nine".