3123321340 has 96 divisors (see below), whose sum is σ = 7041323520. Its totient is φ = 1160898816.

The previous prime is 3123321337. The next prime is 3123321349. The reversal of 3123321340 is 431233213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123321349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5320527 + ... + 5321113.

It is an arithmetic number, because the mean of its divisors is an integer number (73347120).

Almost surely, 2^3123321340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3123321340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3520661760).

3123321340 is an abundant number, since it is smaller than the sum of its proper divisors (3918002180).

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

3123321340 is a wasteful number, since it uses less digits than its factorization.

3123321340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931 (or 929 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 3123321340 is about 55886.6830291439. The cubic root of 3123321340 is about 1461.7470391988.

Adding to 3123321340 its reverse (431233213), we get a palindrome (3554554553).

The spelling of 3123321340 in words is "three billion, one hundred twenty-three million, three hundred twenty-one thousand, three hundred forty".