444202121123 has 4 divisors (see below), whose sum is σ = 463515256848. Its totient is φ = 424888985400.

The previous prime is 444202121089. The next prime is 444202121179. The reversal of 444202121123 is 321121202444.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 444202121123 - 2¹⁰ = 444202120099 is a prime.

It is a super-2 number, since 2×444202121123² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 444202121092 and 444202121101.

It is not an unprimeable number, because it can be changed into a prime (444202121023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9656567828 + ... + 9656567873.

It is an arithmetic number, because the mean of its divisors is an integer number (115878814212).

Almost surely, 2^444202121123 is an apocalyptic number.

444202121123 is a deficient number, since it is larger than the sum of its proper divisors (19313135725).

444202121123 is a wasteful number, since it uses less digits than its factorization.

444202121123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19313135724.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 444202121123 its reverse (321121202444), we get a palindrome (765323323567).

The spelling of 444202121123 in words is "four hundred forty-four billion, two hundred two million, one hundred twenty-one thousand, one hundred twenty-three".