2140310323421 has 12 divisors (see below), whose sum is σ = 2281252330044. Its totient is φ = 2007586512000.

The previous prime is 2140310323399. The next prime is 2140310323423. The reversal of 2140310323421 is 1243230130412.

It can be written as a sum of positive squares in 2 ways, for example, as 2099702431225 + 40607892196 = 1449035^2 + 201514^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2140310323421 is a prime.

It is a super-2 number, since 2×2140310323421² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140310323423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29314220 + ... + 29387141.

It is an arithmetic number, because the mean of its divisors is an integer number (190104360837).

Almost surely, 2^{2140310323421} is an apocalyptic number.

It is an amenable number.

2140310323421 is a deficient number, since it is larger than the sum of its proper divisors (140942006623).

2140310323421 is a wasteful number, since it uses less digits than its factorization.

2140310323421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58701500 (or 58701481 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 2140310323421 its reverse (1243230130412), we get a palindrome (3383540453833).

The spelling of 2140310323421 in words is "two trillion, one hundred forty billion, three hundred ten million, three hundred twenty-three thousand, four hundred twenty-one".