444342122131 has 4 divisors (see below), whose sum is σ = 451873344600. Its totient is φ = 436810899664.

The previous prime is 444342122111. The next prime is 444342122143. The reversal of 444342122131 is 131221243444.

It is a happy number.

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 444342122131 - 2³⁷ = 306903168659 is a prime.

It is a super-2 number, since 2×444342122131² (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 = 444342122093 and 444342122102.

It is not an unprimeable number, because it can be changed into a prime (444342122111) 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 in 3 ways as a sum of consecutive naturals, for example, 3765611146 + ... + 3765611263.

It is an arithmetic number, because the mean of its divisors is an integer number (112968336150).

Almost surely, 2^444342122131 is an apocalyptic number.

444342122131 is a deficient number, since it is larger than the sum of its proper divisors (7531222469).

444342122131 is an equidigital number, since it uses as much as digits as its factorization.

444342122131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7531222468.

The product of its digits is 18432, while the sum is 31.

Adding to 444342122131 its reverse (131221243444), we get a palindrome (575563365575).

The spelling of 444342122131 in words is "four hundred forty-four billion, three hundred forty-two million, one hundred twenty-two thousand, one hundred thirty-one".