10440320213123 has 2 divisors, whose sum is σ = 10440320213124. Its totient is φ = 10440320213122.

The previous prime is 10440320213117. The next prime is 10440320213137. The reversal of 10440320213123 is 32131202304401.

It is a weak prime.

It is an emirp because it is prime and its reverse (32131202304401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10440320213123 - 2¹⁴ = 10440320196739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10440320213092 and 10440320213101.

It is not a weakly prime, because it can be changed into another prime (10440320219123) 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, 5220160106561 + 5220160106562.

It is an arithmetic number, because the mean of its divisors is an integer number (5220160106562).

Almost surely, 2^{10440320213123} is an apocalyptic number.

10440320213123 is a deficient number, since it is larger than the sum of its proper divisors (1).

10440320213123 is an equidigital number, since it uses as much as digits as its factorization.

10440320213123 is an odious number, because the sum of its binary digits is odd.

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

Adding to 10440320213123 its reverse (32131202304401), we get a palindrome (42571522517524).

The spelling of 10440320213123 in words is "ten trillion, four hundred forty billion, three hundred twenty million, two hundred thirteen thousand, one hundred twenty-three".