2321501316340 has 48 divisors (see below), whose sum is σ = 5007186998352. Its totient is φ = 903453889536.

The previous prime is 2321501316319. The next prime is 2321501316349. The reversal of 2321501316340 is 436131051232.

It can be written as a sum of positive squares in 8 ways, for example, as 945487859044 + 1376013457296 = 972362^2 + 1173036^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321501316349) 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 15 ways as a sum of consecutive naturals, for example, 15358974 + ... + 15509386.

It is an arithmetic number, because the mean of its divisors is an integer number (104316395799).

Almost surely, 2^{2321501316340} is an apocalyptic number.

2321501316340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2321501316340 is an abundant number, since it is smaller than the sum of its proper divisors (2685685682012).

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

2321501316340 is a wasteful number, since it uses less digits than its factorization.

2321501316340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171316 (or 171314 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 2321501316340 its reverse (436131051232), we get a palindrome (2757632367572).

The spelling of 2321501316340 in words is "two trillion, three hundred twenty-one billion, five hundred one million, three hundred sixteen thousand, three hundred forty".