321424332420 has 24 divisors (see below), whose sum is σ = 899988130944. Its totient is φ = 85713155296.

The previous prime is 321424332277. The next prime is 321424332487. The reversal of 321424332420 is 24233424123.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2678536044 + ... + 2678536163.

It is an arithmetic number, because the mean of its divisors is an integer number (37499505456).

Almost surely, 2^321424332420 is an apocalyptic number.

321424332420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

321424332420 is an abundant number, since it is smaller than the sum of its proper divisors (578563798524).

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

321424332420 is a wasteful number, since it uses less digits than its factorization.

321424332420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5357072219 (or 5357072217 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 321424332420 its reverse (24233424123), we get a palindrome (345657756543).

The spelling of 321424332420 in words is "three hundred twenty-one billion, four hundred twenty-four million, three hundred thirty-two thousand, four hundred twenty".