321323110320 has 40 divisors (see below), whose sum is σ = 996101642736. Its totient is φ = 85686162688.

The previous prime is 321323110301. The next prime is 321323110321. The reversal of 321323110320 is 23011323123.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (321323110321) 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, 669422907 + ... + 669423386.

Almost surely, 2^321323110320 is an apocalyptic number.

321323110320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

321323110320 is an abundant number, since it is smaller than the sum of its proper divisors (674778532416).

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

321323110320 is a wasteful number, since it uses less digits than its factorization.

321323110320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338846309 (or 1338846303 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 321323110320 its reverse (23011323123), we get a palindrome (344334433443).

The spelling of 321323110320 in words is "three hundred twenty-one billion, three hundred twenty-three million, one hundred ten thousand, three hundred twenty".