1321233104 has 20 divisors (see below), whose sum is σ = 2568635076. Its totient is φ = 658359552.

The previous prime is 1321233103. The next prime is 1321233139. The reversal of 1321233104 is 4013321231.

It can be written as a sum of positive squares in 2 ways, for example, as 909143104 + 412090000 = 30152^2 + 20300^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321233103) 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 3 ways as a sum of consecutive naturals, for example, 136229 + ... + 145604.

Almost surely, 2^1321233104 is an apocalyptic number.

It is an amenable number.

1321233104 is a deficient number, since it is larger than the sum of its proper divisors (1247401972).

1321233104 is a wasteful number, since it uses less digits than its factorization.

1321233104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282134 (or 282128 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1321233104 is about 36348.7703230797. The cubic root of 1321233104 is about 1097.3027868480.

Adding to 1321233104 its reverse (4013321231), we get a palindrome (5334554335).

The spelling of 1321233104 in words is "one billion, three hundred twenty-one million, two hundred thirty-three thousand, one hundred four".