321032203143420 has 96 divisors (see below), whose sum is σ = 905131606127616. Its totient is φ = 85014526464000.

The previous prime is 321032203143419. The next prime is 321032203143473. The reversal of 321032203143420 is 24341302230123.

It is a happy number.

It is a super-2 number, since 2×321032203143420² (a number of 30 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22773465 + ... + 34068975.

It is an arithmetic number, because the mean of its divisors is an integer number (9428454230496).

Almost surely, 2^{321032203143420} is an apocalyptic number.

321032203143420 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 321032203143420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (452565803063808).

321032203143420 is an abundant number, since it is smaller than the sum of its proper divisors (584099402984196).

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

321032203143420 is a wasteful number, since it uses less digits than its factorization.

321032203143420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11298811 (or 11298809 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 321032203143420 its reverse (24341302230123), we get a palindrome (345373505373543).

The spelling of 321032203143420 in words is "three hundred twenty-one trillion, thirty-two billion, two hundred three million, one hundred forty-three thousand, four hundred twenty".