1223203104 has 72 divisors (see below), whose sum is σ = 3537490320. Its totient is φ = 400818048.

The previous prime is 1223203103. The next prime is 1223203139. The reversal of 1223203104 is 4013023221.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is not an unprimeable number, because it can be changed into a prime (1223203103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19002 + ... + 52985.

It is an arithmetic number, because the mean of its divisors is an integer number (49131810).

Almost surely, 2^1223203104 is an apocalyptic number.

It is an amenable number.

1223203104 is an abundant number, since it is smaller than the sum of its proper divisors (2314287216).

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

1223203104 is a wasteful number, since it uses less digits than its factorization.

1223203104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72062 (or 72051 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1223203104 is about 34974.3206367186. The cubic root of 1223203104 is about 1069.4640527893.

Adding to 1223203104 its reverse (4013023221), we get a palindrome (5236226325).

The spelling of 1223203104 in words is "one billion, two hundred twenty-three million, two hundred three thousand, one hundred four".