321052142525240 has 64 divisors (see below), whose sum is σ = 833278191091200. Its totient is φ = 109046281776768.

The previous prime is 321052142525201. The next prime is 321052142525263. The reversal of 321052142525240 is 42525241250123.

It is a junction number, because it is equal to n+sod(n) for n = 321052142525194 and 321052142525203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5357983100 + ... + 5358043019.

It is an arithmetic number, because the mean of its divisors is an integer number (13019971735800).

Almost surely, 2^{321052142525240} is an apocalyptic number.

It is an amenable number.

321052142525240 is an abundant number, since it is smaller than the sum of its proper divisors (512226048565960).

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

321052142525240 is a wasteful number, since it uses less digits than its factorization.

321052142525240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10716026244 (or 10716026240 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 38.

Adding to 321052142525240 its reverse (42525241250123), we get a palindrome (363577383775363).

The spelling of 321052142525240 in words is "three hundred twenty-one trillion, fifty-two billion, one hundred forty-two million, five hundred twenty-five thousand, two hundred forty".