321124123320 has 512 divisors, whose sum is σ = 1328456263680. Its totient is φ = 59928698880.

The previous prime is 321124123291. The next prime is 321124123363. The reversal of 321124123320 is 23321421123.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4408314 + ... + 4480566.

It is an arithmetic number, because the mean of its divisors is an integer number (2594641140).

Almost surely, 2^321124123320 is an apocalyptic number.

321124123320 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 321124123320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (664228131840).

321124123320 is an abundant number, since it is smaller than the sum of its proper divisors (1007332140360).

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

321124123320 is a wasteful number, since it uses less digits than its factorization.

321124123320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72335 (or 72331 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 321124123320 its reverse (23321421123), we get a palindrome (344445544443).

It can be divided in two parts, 321124 and 123320, that added together give a palindrome (444444).

The spelling of 321124123320 in words is "three hundred twenty-one billion, one hundred twenty-four million, one hundred twenty-three thousand, three hundred twenty".