321423002928 has 60 divisors (see below), whose sum is σ = 922636888680. Its totient is φ = 107137073088.

The previous prime is 321423002921. The next prime is 321423002947. The reversal of 321423002928 is 829200324123.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

321423002928 is a `hidden beast` number, since 3 + 21 + 42 + 300 + 292 + 8 = 666.

It is a super-2 number, since 2×321423002928² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 321423002892 and 321423002901.

It is not an unprimeable number, because it can be changed into a prime (321423002921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11770026 + ... + 11797302.

It is an arithmetic number, because the mean of its divisors is an integer number (15377281478).

Almost surely, 2^321423002928 is an apocalyptic number.

It is an amenable number.

321423002928 is an abundant number, since it is smaller than the sum of its proper divisors (601213885752).

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

321423002928 is an frugal number, since it uses more digits than its factorization.

321423002928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54571 (or 27282 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 321423002928 in words is "three hundred twenty-one billion, four hundred twenty-three million, two thousand, nine hundred twenty-eight".