1204103220 has 48 divisors (see below), whose sum is σ = 3374118720. Its totient is φ = 320843776.

The previous prime is 1204103191. The next prime is 1204103221. The reversal of 1204103220 is 223014021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1204103220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204103221) by changing a digit.

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, 77419 + ... + 91661.

It is an arithmetic number, because the mean of its divisors is an integer number (70294140).

Almost surely, 2^1204103220 is an apocalyptic number.

1204103220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1204103220 is an abundant number, since it is smaller than the sum of its proper divisors (2170015500).

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

1204103220 is a wasteful number, since it uses less digits than its factorization.

1204103220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15664 (or 15662 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1204103220 is about 34700.1904893907. The cubic root of 1204103220 is about 1063.8683918191.

Adding to 1204103220 its reverse (223014021), we get a palindrome (1427117241).

The spelling of 1204103220 in words is "one billion, two hundred four million, one hundred three thousand, two hundred twenty".