1244004200123 has 2 divisors, whose sum is σ = 1244004200124. Its totient is φ = 1244004200122.

The previous prime is 1244004200099. The next prime is 1244004200129. The reversal of 1244004200123 is 3210024004421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1244004200123 - 2¹⁰ = 1244004199099 is a prime.

It is not a weakly prime, because it can be changed into another prime (1244004200129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622002100061 + 622002100062.

It is an arithmetic number, because the mean of its divisors is an integer number (622002100062).

Almost surely, 2^{1244004200123} is an apocalyptic number.

1244004200123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244004200123 is an equidigital number, since it uses as much as digits as its factorization.

1244004200123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 1244004200123 its reverse (3210024004421), we get a palindrome (4454028204544).

The spelling of 1244004200123 in words is "one trillion, two hundred forty-four billion, four million, two hundred thousand, one hundred twenty-three".