1304431245533 has 32 divisors (see below), whose sum is σ = 1466627027040. Its totient is φ = 1151846277120.

The previous prime is 1304431245527. The next prime is 1304431245541. The reversal of 1304431245533 is 3355421344031.

It can be written as a sum of positive squares in 16 ways, for example, as 590848956889 + 713582288644 = 768667^2 + 844738^2 .

It is a cyclic number.

It is not a de Polignac number, because 1304431245533 - 2²² = 1304427051229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304431245833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 174362153 + ... + 174369633.

It is an arithmetic number, because the mean of its divisors is an integer number (45832094595).

Almost surely, 2^{1304431245533} is an apocalyptic number.

1304431245533 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1304431245533 is a deficient number, since it is larger than the sum of its proper divisors (162195781507).

1304431245533 is a wasteful number, since it uses less digits than its factorization.

1304431245533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11729.

The product of its (nonzero) digits is 259200, while the sum is 38.

Adding to 1304431245533 its reverse (3355421344031), we get a palindrome (4659852589564).

The spelling of 1304431245533 in words is "one trillion, three hundred four billion, four hundred thirty-one million, two hundred forty-five thousand, five hundred thirty-three".