20103100220 has 48 divisors (see below), whose sum is σ = 49038403008. Its totient is φ = 6779496960.

The previous prime is 20103100183. The next prime is 20103100231. The reversal of 20103100220 is 2200130102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1168457 + ... + 1185536.

It is an arithmetic number, because the mean of its divisors is an integer number (1021633396).

Almost surely, 2^20103100220 is an apocalyptic number.

20103100220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20103100220 is an abundant number, since it is smaller than the sum of its proper divisors (28935302788).

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

20103100220 is a wasteful number, since it uses less digits than its factorization.

20103100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354070 (or 2354068 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20103100220 its reverse (2200130102), we get a palindrome (22303230322).

The spelling of 20103100220 in words is "twenty billion, one hundred three million, one hundred thousand, two hundred twenty".