1204421013 has 48 divisors (see below), whose sum is σ = 1897758720. Its totient is φ = 733959072.

The previous prime is 1204420969. The next prime is 1204421041. The reversal of 1204421013 is 3101244021.

1204421013 is a `hidden beast` number, since 120 + 442 + 101 + 3 = 666.

It is not a de Polignac number, because 1204421013 - 2⁶ = 1204420949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204421063) 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 47 ways as a sum of consecutive naturals, for example, 416908 + ... + 419786.

It is an arithmetic number, because the mean of its divisors is an integer number (39536640).

Almost surely, 2^1204421013 is an apocalyptic number.

It is an amenable number.

1204421013 is a deficient number, since it is larger than the sum of its proper divisors (693337707).

1204421013 is a wasteful number, since it uses less digits than its factorization.

1204421013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2998 (or 2995 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1204421013 is about 34704.7693120124. The cubic root of 1204421013 is about 1063.9619774252.

Adding to 1204421013 its reverse (3101244021), we get a palindrome (4305665034).

The spelling of 1204421013 in words is "one billion, two hundred four million, four hundred twenty-one thousand, thirteen".