40340351323 has 2 divisors, whose sum is σ = 40340351324. Its totient is φ = 40340351322.

The previous prime is 40340351299. The next prime is 40340351327. The reversal of 40340351323 is 32315304304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40340351323 - 2²⁹ = 39803480411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40340351291 and 40340351300.

It is not a weakly prime, because it can be changed into another prime (40340351327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20170175661 + 20170175662.

It is an arithmetic number, because the mean of its divisors is an integer number (20170175662).

Almost surely, 2^40340351323 is an apocalyptic number.

40340351323 is a deficient number, since it is larger than the sum of its proper divisors (1).

40340351323 is an equidigital number, since it uses as much as digits as its factorization.

40340351323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 40340351323 its reverse (32315304304), we get a palindrome (72655655627).

The spelling of 40340351323 in words is "forty billion, three hundred forty million, three hundred fifty-one thousand, three hundred twenty-three".