321312513055010 has 16 divisors (see below), whose sum is σ = 579472624321272. Its totient is φ = 128278316150400.

The previous prime is 321312513054971. The next prime is 321312513055021. The reversal of 321312513055010 is 10550315213123.

It can be written as a sum of positive squares in 4 ways, for example, as 135348862406209 + 185963650648801 = 11633953^2 + 13636849^2 .

It is a super-2 number, since 2×321312513055010² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 30836128481 + ... + 30836138900.

Almost surely, 2^{321312513055010} is an apocalyptic number.

321312513055010 is a deficient number, since it is larger than the sum of its proper divisors (258160111266262).

321312513055010 is a wasteful number, since it uses less digits than its factorization.

321312513055010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61672267909.

The product of its (nonzero) digits is 13500, while the sum is 32.

Adding to 321312513055010 its reverse (10550315213123), we get a palindrome (331862828268133).

The spelling of 321312513055010 in words is "three hundred twenty-one trillion, three hundred twelve billion, five hundred thirteen million, fifty-five thousand, ten".