210109103020 has 24 divisors (see below), whose sum is σ = 441362036304. Its totient is φ = 84018323136.

The previous prime is 210109103003. The next prime is 210109103023. The reversal of 210109103020 is 20301901012.

It is not an unprimeable number, because it can be changed into a prime (210109103023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1514259 + ... + 1647178.

It is an arithmetic number, because the mean of its divisors is an integer number (18390084846).

Almost surely, 2^210109103020 is an apocalyptic number.

210109103020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210109103020 is an abundant number, since it is smaller than the sum of its proper divisors (231252933284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210109103020 is a wasteful number, since it uses less digits than its factorization.

210109103020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3164769 (or 3164767 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

The spelling of 210109103020 in words is "two hundred ten billion, one hundred nine million, one hundred three thousand, twenty".