103321220 has 12 divisors (see below), whose sum is σ = 216974604. Its totient is φ = 41328480.

The previous prime is 103321201. The next prime is 103321237. The reversal of 103321220 is 22123301.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 60497284 + 42823936 = 7778^2 + 6544^2 .

It is a junction number, because it is equal to n+sod(n) for n = 103321195 and 103321204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2583011 + ... + 2583050.

It is an arithmetic number, because the mean of its divisors is an integer number (18081217).

Almost surely, 2^103321220 is an apocalyptic number.

103321220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103321220 is an abundant number, since it is smaller than the sum of its proper divisors (113653384).

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

103321220 is a wasteful number, since it uses less digits than its factorization.

103321220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5166070 (or 5166068 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 103321220 is about 10164.7046194171. The cubic root of 103321220 is about 469.2416017042.

Adding to 103321220 its reverse (22123301), we get a palindrome (125444521).

The spelling of 103321220 in words is "one hundred three million, three hundred twenty-one thousand, two hundred twenty".