321135214320 has 120 divisors (see below), whose sum is σ = 1115668101600. Its totient is φ = 82683084288.

The previous prime is 321135214313. The next prime is 321135214333. The reversal of 321135214320 is 23412531123.

321135214320 is a `hidden beast` number, since 3 + 2 + 113 + 521 + 4 + 3 + 20 = 666.

321135214320 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7669140 + ... + 7710899.

It is an arithmetic number, because the mean of its divisors is an integer number (9297234180).

Almost surely, 2^321135214320 is an apocalyptic number.

321135214320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

321135214320 is an abundant number, since it is smaller than the sum of its proper divisors (794532887280).

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

321135214320 is a wasteful number, since it uses less digits than its factorization.

321135214320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15380087 (or 15380078 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 321135214320 its reverse (23412531123), we get a palindrome (344547745443).

The spelling of 321135214320 in words is "three hundred twenty-one billion, one hundred thirty-five million, two hundred fourteen thousand, three hundred twenty".