20103212010 has 128 divisors (see below), whose sum is σ = 59915059200. Its totient is φ = 4212725760.

The previous prime is 20103211969. The next prime is 20103212027. The reversal of 20103212010 is 1021230102.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 42426 + ... + 204954.

It is an arithmetic number, because the mean of its divisors is an integer number (468086400).

Almost surely, 2^20103212010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20103212010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29957529600).

20103212010 is an abundant number, since it is smaller than the sum of its proper divisors (39811847190).

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

20103212010 is a wasteful number, since it uses less digits than its factorization.

20103212010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162596.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20103212010 its reverse (1021230102), we get a palindrome (21124442112).

The spelling of 20103212010 in words is "twenty billion, one hundred three million, two hundred twelve thousand, ten".