10044400123 has 2 divisors, whose sum is σ = 10044400124. Its totient is φ = 10044400122.

The previous prime is 10044400087. The next prime is 10044400231. The reversal of 10044400123 is 32100444001.

Together with next prime (10044400231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (32100444001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10044400123 - 2¹⁷ = 10044269051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10044400123.

It is not a weakly prime, because it can be changed into another prime (10044490123) 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, 5022200061 + 5022200062.

It is an arithmetic number, because the mean of its divisors is an integer number (5022200062).

Almost surely, 2^10044400123 is an apocalyptic number.

10044400123 is a deficient number, since it is larger than the sum of its proper divisors (1).

10044400123 is an equidigital number, since it uses as much as digits as its factorization.

10044400123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 10044400123 its reverse (32100444001), we get a palindrome (42144844124).

The spelling of 10044400123 in words is "ten billion, forty-four million, four hundred thousand, one hundred twenty-three".