321023140413420 has 192 divisors, whose sum is σ = 906328613836800. Its totient is φ = 84896745062400.

The previous prime is 321023140413389. The next prime is 321023140413433. The reversal of 321023140413420 is 24314041320123.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36945920436 + ... + 36945929124.

It is an arithmetic number, because the mean of its divisors is an integer number (4720461530400).

Almost surely, 2^{321023140413420} is an apocalyptic number.

321023140413420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321023140413420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (453164306918400).

321023140413420 is an abundant number, since it is smaller than the sum of its proper divisors (585305473423380).

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

321023140413420 is a wasteful number, since it uses less digits than its factorization.

321023140413420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13208 (or 13206 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 321023140413420 its reverse (24314041320123), we get a palindrome (345337181733543).

The spelling of 321023140413420 in words is "three hundred twenty-one trillion, twenty-three billion, one hundred forty million, four hundred thirteen thousand, four hundred twenty".