20123203210 has 48 divisors (see below), whose sum is σ = 40455378720. Its totient is φ = 7147281120.

The previous prime is 20123203181. The next prime is 20123203231. The reversal of 20123203210 is 1230232102.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153921 + ... + 252859.

It is an arithmetic number, because the mean of its divisors is an integer number (842820390).

Almost surely, 2^20123203210 is an apocalyptic number.

20123203210 is an abundant number, since it is smaller than the sum of its proper divisors (20332175510).

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

20123203210 is a wasteful number, since it uses less digits than its factorization.

20123203210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99043 (or 99000 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20123203210 its reverse (1230232102), we get a palindrome (21353435312).

The spelling of 20123203210 in words is "twenty billion, one hundred twenty-three million, two hundred three thousand, two hundred ten".