245031321304 has 32 divisors (see below), whose sum is σ = 572800492800. Its totient is φ = 95466748320.

The previous prime is 245031321263. The next prime is 245031321319. The reversal of 245031321304 is 403123130542.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198888444 + ... + 198889675.

It is an arithmetic number, because the mean of its divisors is an integer number (17900015400).

Almost surely, 2^245031321304 is an apocalyptic number.

It is an amenable number.

245031321304 is an abundant number, since it is smaller than the sum of its proper divisors (327769171496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245031321304 is a wasteful number, since it uses less digits than its factorization.

245031321304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397778143 (or 397778139 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 245031321304 its reverse (403123130542), we get a palindrome (648154451846).

The spelling of 245031321304 in words is "two hundred forty-five billion, thirty-one million, three hundred twenty-one thousand, three hundred four".