2140340240323 has 2 divisors, whose sum is σ = 2140340240324. Its totient is φ = 2140340240322.

The previous prime is 2140340240321. The next prime is 2140340240443. The reversal of 2140340240323 is 3230420430412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2140340240323 - 2¹ = 2140340240321 is a prime.

Together with 2140340240321, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2140340240291 and 2140340240300.

It is not a weakly prime, because it can be changed into another prime (2140340240321) 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 as a sum of consecutive naturals, namely, 1070170120161 + 1070170120162.

It is an arithmetic number, because the mean of its divisors is an integer number (1070170120162).

Almost surely, 2^{2140340240323} is an apocalyptic number.

2140340240323 is a deficient number, since it is larger than the sum of its proper divisors (1).

2140340240323 is an equidigital number, since it uses as much as digits as its factorization.

2140340240323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 2140340240323 its reverse (3230420430412), we get a palindrome (5370760670735).

The spelling of 2140340240323 in words is "two trillion, one hundred forty billion, three hundred forty million, two hundred forty thousand, three hundred twenty-three".