210103001989 has 8 divisors (see below), whose sum is σ = 222529453848. Its totient is φ = 197684044800.

The previous prime is 210103001971. The next prime is 210103002001. The reversal of 210103001989 is 989100301012.

210103001989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 25971900964 + 184131101025 = 161158^2 + 429105^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 210103001989 - 2⁵ = 210103001957 is a prime.

It is a super-2 number, since 2×210103001989² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210103001489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1815892 + ... + 1928125.

It is an arithmetic number, because the mean of its divisors is an integer number (27816181731).

Almost surely, 2^210103001989 is an apocalyptic number.

It is an amenable number.

210103001989 is a deficient number, since it is larger than the sum of its proper divisors (12426451859).

210103001989 is a wasteful number, since it uses less digits than its factorization.

210103001989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3747335.

The product of its (nonzero) digits is 3888, while the sum is 34.

The spelling of 210103001989 in words is "two hundred ten billion, one hundred three million, one thousand, nine hundred eighty-nine".