321130003320 has 96 divisors (see below), whose sum is σ = 1192768593120. Its totient is φ = 73401143040.

The previous prime is 321130003177. The next prime is 321130003321. The reversal of 321130003320 is 23300031123.

321130003320 is a `hidden beast` number, since 32 + 1 + 1 + 300 + 0 + 332 + 0 = 666.

It is a super-2 number, since 2×321130003320² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 321130003293 and 321130003302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321130003321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63713751 + ... + 63718790.

It is an arithmetic number, because the mean of its divisors is an integer number (12424672845).

Almost surely, 2^321130003320 is an apocalyptic number.

321130003320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

321130003320 is an abundant number, since it is smaller than the sum of its proper divisors (871638589800).

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

321130003320 is a wasteful number, since it uses less digits than its factorization.

321130003320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127432565 (or 127432558 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 321130003320 its reverse (23300031123), we get a palindrome (344430034443).

The spelling of 321130003320 in words is "three hundred twenty-one billion, one hundred thirty million, three thousand, three hundred twenty".