103221312020 has 48 divisors (see below), whose sum is σ = 217871216640. Its totient is φ = 41078311296.

The previous prime is 103221311987. The next prime is 103221312049. The reversal of 103221312020 is 20213122301.

It is a self number, because there is not a number n which added to its sum of digits gives 103221312020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3109229 + ... + 3142251.

It is an arithmetic number, because the mean of its divisors is an integer number (4538983680).

Almost surely, 2^103221312020 is an apocalyptic number.

103221312020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103221312020 is an abundant number, since it is smaller than the sum of its proper divisors (114649904620).

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

103221312020 is a wasteful number, since it uses less digits than its factorization.

103221312020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33824 (or 33822 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 103221312020 its reverse (20213122301), we get a palindrome (123434434321).

The spelling of 103221312020 in words is "one hundred three billion, two hundred twenty-one million, three hundred twelve thousand, twenty".