1304243231355 has 64 divisors (see below), whose sum is σ = 2360508808320. Its totient is φ = 683121973248.

The previous prime is 1304243231353. The next prime is 1304243231413. The reversal of 1304243231355 is 5531323424031.

1304243231355 is a `hidden beast` number, since 1 + 30 + 4 + 2 + 43 + 231 + 355 = 666.

It is not a de Polignac number, because 1304243231355 - 2¹ = 1304243231353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1304243231353) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2012217 + ... + 2580213.

It is an arithmetic number, because the mean of its divisors is an integer number (36882950130).

Almost surely, 2^{1304243231355} is an apocalyptic number.

1304243231355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1304243231355 is a deficient number, since it is larger than the sum of its proper divisors (1056265576965).

1304243231355 is a wasteful number, since it uses less digits than its factorization.

1304243231355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568317 (or 568311 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 1304243231355 its reverse (5531323424031), we get a palindrome (6835566655386).

The spelling of 1304243231355 in words is "one trillion, three hundred four billion, two hundred forty-three million, two hundred thirty-one thousand, three hundred fifty-five".