2321304055145 has 4 divisors (see below), whose sum is σ = 2785564866180. Its totient is φ = 1857043244112.

The previous prime is 2321304055139. The next prime is 2321304055181. The reversal of 2321304055145 is 5415504031232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 338426081536 + 1982877973609 = 581744^2 + 1408147^2 .

It is a cyclic number.

It is not a de Polignac number, because 2321304055145 - 2⁸ = 2321304054889 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232130405510 + ... + 232130405519.

It is an arithmetic number, because the mean of its divisors is an integer number (696391216545).

Almost surely, 2^{2321304055145} is an apocalyptic number.

It is an amenable number.

2321304055145 is a deficient number, since it is larger than the sum of its proper divisors (464260811035).

2321304055145 is an equidigital number, since it uses as much as digits as its factorization.

2321304055145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464260811034.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 2321304055145 its reverse (5415504031232), we get a palindrome (7736808086377).

The spelling of 2321304055145 in words is "two trillion, three hundred twenty-one billion, three hundred four million, fifty-five thousand, one hundred forty-five".