321025042330 has 16 divisors (see below), whose sum is σ = 577851921864. Its totient is φ = 128408495680.

The previous prime is 321025042309. The next prime is 321025042333. The reversal of 321025042330 is 33240520123.

It can be written as a sum of positive squares in 4 ways, for example, as 314955541681 + 6069500649 = 561209^2 + 77907^2 .

It is a super-3 number, since 3×321025042330³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321025042295 and 321025042304.

It is not an unprimeable number, because it can be changed into a prime (321025042333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1137684 + ... + 1391536.

Almost surely, 2^321025042330 is an apocalyptic number.

321025042330 is a deficient number, since it is larger than the sum of its proper divisors (256826879534).

321025042330 is a wasteful number, since it uses less digits than its factorization.

321025042330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380321.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 321025042330 its reverse (33240520123), we get a palindrome (354265562453).

The spelling of 321025042330 in words is "three hundred twenty-one billion, twenty-five million, forty-two thousand, three hundred thirty".