103321211220 has 36 divisors (see below), whose sum is σ = 313407674580. Its totient is φ = 27552322944.

The previous prime is 103321211209. The next prime is 103321211233. The reversal of 103321211220 is 22112123301.

103321211220 is a `hidden beast` number, since 103 + 321 + 21 + 1 + 220 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 23434711056 + 79886500164 = 153084^2 + 282642^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 103321211193 and 103321211202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 287003185 + ... + 287003544.

Almost surely, 2^103321211220 is an apocalyptic number.

103321211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103321211220 is an abundant number, since it is smaller than the sum of its proper divisors (210086463360).

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

103321211220 is a wasteful number, since it uses less digits than its factorization.

103321211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574006744 (or 574006739 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 103321211220 its reverse (22112123301), we get a palindrome (125433334521).

The spelling of 103321211220 in words is "one hundred three billion, three hundred twenty-one million, two hundred eleven thousand, two hundred twenty".