321153204252 has 48 divisors (see below), whose sum is σ = 793969519392. Its totient is φ = 100686366720.

The previous prime is 321153204233. The next prime is 321153204263. The reversal of 321153204252 is 252402351123.

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, 222649 + ... + 831792.

It is an arithmetic number, because the mean of its divisors is an integer number (16541031654).

Almost surely, 2^321153204252 is an apocalyptic number.

It is an amenable number.

321153204252 is an abundant number, since it is smaller than the sum of its proper divisors (472816315140).

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

321153204252 is a wasteful number, since it uses less digits than its factorization.

321153204252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055958 (or 1055956 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 321153204252 its reverse (252402351123), we get a palindrome (573555555375).

The spelling of 321153204252 in words is "three hundred twenty-one billion, one hundred fifty-three million, two hundred four thousand, two hundred fifty-two".