321143113320 has 64 divisors (see below), whose sum is σ = 963547686720. Its totient is φ = 85627643904.

The previous prime is 321143113267. The next prime is 321143113351. The reversal of 321143113320 is 23311341123.

It is a super-2 number, since 2×321143113320² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 842167 + ... + 1162553.

It is an arithmetic number, because the mean of its divisors is an integer number (15055432605).

Almost surely, 2^321143113320 is an apocalyptic number.

321143113320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

321143113320 is an abundant number, since it is smaller than the sum of its proper divisors (642404573400).

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

321143113320 is a wasteful number, since it uses less digits than its factorization.

321143113320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328754 (or 328750 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 321143113320 its reverse (23311341123), we get a palindrome (344454454443).

The spelling of 321143113320 in words is "three hundred twenty-one billion, one hundred forty-three million, one hundred thirteen thousand, three hundred twenty".