20013103023220 has 48 divisors (see below), whose sum is σ = 43027669903680. Its totient is φ = 7814932909056.

The previous prime is 20013103023209. The next prime is 20013103023239. The reversal of 20013103023220 is 2232030131002.

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, 4535082 + ... + 7784161.

It is an arithmetic number, because the mean of its divisors is an integer number (896409789660).

Almost surely, 2^{20013103023220} is an apocalyptic number.

20013103023220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20013103023220 is an abundant number, since it is smaller than the sum of its proper divisors (23014566880460).

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

20013103023220 is a wasteful number, since it uses less digits than its factorization.

20013103023220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12321184 (or 12321182 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20013103023220 its reverse (2232030131002), we get a palindrome (22245133154222).

The spelling of 20013103023220 in words is "twenty trillion, thirteen billion, one hundred three million, twenty-three thousand, two hundred twenty".