440121042202123 has 2 divisors, whose sum is σ = 440121042202124. Its totient is φ = 440121042202122.

The previous prime is 440121042202097. The next prime is 440121042202169. The reversal of 440121042202123 is 321202240121044.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 440121042202123 - 2²⁹ = 440120505331211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 440121042202091 and 440121042202100.

It is not a weakly prime, because it can be changed into another prime (440121042203123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220060521101061 + 220060521101062.

It is an arithmetic number, because the mean of its divisors is an integer number (220060521101062).

Almost surely, 2^{440121042202123} is an apocalyptic number.

440121042202123 is a deficient number, since it is larger than the sum of its proper divisors (1).

440121042202123 is an equidigital number, since it uses as much as digits as its factorization.

440121042202123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 440121042202123 its reverse (321202240121044), we get a palindrome (761323282323167).

The spelling of 440121042202123 in words is "four hundred forty trillion, one hundred twenty-one billion, forty-two million, two hundred two thousand, one hundred twenty-three".