323121243340 has 96 divisors (see below), whose sum is σ = 777624994944. Its totient is φ = 110480025600.

The previous prime is 323121243311. The next prime is 323121243413. The reversal of 323121243340 is 43342121323.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 323121243299 and 323121243308.

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, 115522822 + ... + 115525618.

It is an arithmetic number, because the mean of its divisors is an integer number (8100260364).

Almost surely, 2^323121243340 is an apocalyptic number.

It is an amenable number.

323121243340 is an abundant number, since it is smaller than the sum of its proper divisors (454503751604).

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

323121243340 is a wasteful number, since it uses less digits than its factorization.

323121243340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4787 (or 4785 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 323121243340 its reverse (43342121323), we get a palindrome (366463364663).

The spelling of 323121243340 in words is "three hundred twenty-three billion, one hundred twenty-one million, two hundred forty-three thousand, three hundred forty".