321145225124 has 12 divisors (see below), whose sum is σ = 568318797900. Its totient is φ = 158768425728.

The previous prime is 321145225087. The next prime is 321145225127. The reversal of 321145225124 is 421522541123.

It can be written as a sum of positive squares in 2 ways, for example, as 78382081024 + 242763144100 = 279968^2 + 492710^2 .

It is a super-3 number, since 3×321145225124³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (321145225127) 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 3 ways as a sum of consecutive naturals, for example, 451046309 + ... + 451047020.

It is an arithmetic number, because the mean of its divisors is an integer number (47359899825).

Almost surely, 2^321145225124 is an apocalyptic number.

It is an amenable number.

321145225124 is a deficient number, since it is larger than the sum of its proper divisors (247173572776).

321145225124 is a wasteful number, since it uses less digits than its factorization.

321145225124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902093422 (or 902093420 counting only the distinct ones).

The product of its digits is 19200, while the sum is 32.

Adding to 321145225124 its reverse (421522541123), we get a palindrome (742667766247).

The spelling of 321145225124 in words is "three hundred twenty-one billion, one hundred forty-five million, two hundred twenty-five thousand, one hundred twenty-four".