103103321220 has 36 divisors (see below), whose sum is σ = 312746741580. Its totient is φ = 27494218944.

The previous prime is 103103321117. The next prime is 103103321249. The reversal of 103103321220 is 22123301301.

103103321220 is a `hidden beast` number, since 1 + 0 + 310 + 332 + 1 + 2 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 50452347456 + 52650973764 = 224616^2 + 229458^2 .

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 = 103103321193 and 103103321202.

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, 286397935 + ... + 286398294.

Almost surely, 2^103103321220 is an apocalyptic number.

103103321220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103103321220 is an abundant number, since it is smaller than the sum of its proper divisors (209643420360).

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

103103321220 is a wasteful number, since it uses less digits than its factorization.

103103321220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572796244 (or 572796239 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 103103321220 its reverse (22123301301), we get a palindrome (125226622521).

The spelling of 103103321220 in words is "one hundred three billion, one hundred three million, three hundred twenty-one thousand, two hundred twenty".