442440233342123 has 2 divisors, whose sum is σ = 442440233342124. Its totient is φ = 442440233342122.

The previous prime is 442440233342101. The next prime is 442440233342197. The reversal of 442440233342123 is 321243332044244.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442440233342123 - 2⁶ = 442440233342059 is a prime.

It is a super-2 number, since 2×442440233342123² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (442440223342123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221220116671061 + 221220116671062.

It is an arithmetic number, because the mean of its divisors is an integer number (221220116671062).

Almost surely, 2^{442440233342123} is an apocalyptic number.

442440233342123 is a deficient number, since it is larger than the sum of its proper divisors (1).

442440233342123 is an equidigital number, since it uses as much as digits as its factorization.

442440233342123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1327104, while the sum is 41.

Adding to 442440233342123 its reverse (321243332044244), we get a palindrome (763683565386367).

The spelling of 442440233342123 in words is "four hundred forty-two trillion, four hundred forty billion, two hundred thirty-three million, three hundred forty-two thousand, one hundred twenty-three".