444243121031 has 2 divisors, whose sum is σ = 444243121032. Its totient is φ = 444243121030.

The previous prime is 444243121027. The next prime is 444243121033. The reversal of 444243121031 is 130121342444.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 444243121031 - 2² = 444243121027 is a prime.

It is a super-2 number, since 2×444243121031² (a number of 24 digits) contains 22 as substring.

Together with 444243121033, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 444243120985 and 444243121003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444243121033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222121560515 + 222121560516.

It is an arithmetic number, because the mean of its divisors is an integer number (222121560516).

Almost surely, 2^444243121031 is an apocalyptic number.

444243121031 is a deficient number, since it is larger than the sum of its proper divisors (1).

444243121031 is an equidigital number, since it uses as much as digits as its factorization.

444243121031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 444243121031 its reverse (130121342444), we get a palindrome (574364463475).

The spelling of 444243121031 in words is "four hundred forty-four billion, two hundred forty-three million, one hundred twenty-one thousand, thirty-one".