1304434251243 has 24 divisors (see below), whose sum is σ = 1913231034000. Its totient is φ = 856228532544.

The previous prime is 1304434251227. The next prime is 1304434251283. The reversal of 1304434251243 is 3421524344031.

1304434251243 is a `hidden beast` number, since 1 + 30 + 44 + 34 + 2 + 512 + 43 = 666.

It is not a de Polignac number, because 1304434251243 - 2⁴ = 1304434251227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1304434251198 and 1304434251207.

It is not an unprimeable number, because it can be changed into a prime (1304434251283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 724833 + ... + 1770381.

It is an arithmetic number, because the mean of its divisors is an integer number (79717959750).

Almost surely, 2^{1304434251243} is an apocalyptic number.

1304434251243 is a deficient number, since it is larger than the sum of its proper divisors (608796782757).

1304434251243 is a wasteful number, since it uses less digits than its factorization.

1304434251243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047691 (or 1047688 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 1304434251243 its reverse (3421524344031), we get a palindrome (4725958595274).

The spelling of 1304434251243 in words is "one trillion, three hundred four billion, four hundred thirty-four million, two hundred fifty-one thousand, two hundred forty-three".