20103103220 has 48 divisors (see below), whose sum is σ = 42361704000. Its totient is φ = 8013640704.

The previous prime is 20103103213. The next prime is 20103103259. The reversal of 20103103220 is 2230130102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20103103195 and 20103103204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11845412 + ... + 11847108.

It is an arithmetic number, because the mean of its divisors is an integer number (882535500).

Almost surely, 2^20103103220 is an apocalyptic number.

20103103220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20103103220 is an abundant number, since it is smaller than the sum of its proper divisors (22258600780).

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

20103103220 is a wasteful number, since it uses less digits than its factorization.

20103103220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3392 (or 3390 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20103103220 its reverse (2230130102), we get a palindrome (22333233322).

The spelling of 20103103220 in words is "twenty billion, one hundred three million, one hundred three thousand, two hundred twenty".