42144100423 has 2 divisors, whose sum is σ = 42144100424. Its totient is φ = 42144100422.

The previous prime is 42144100399. The next prime is 42144100451. The reversal of 42144100423 is 32400144124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42144100423 - 2⁵ = 42144100391 is a prime.

It is a super-2 number, since 2×42144100423² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42144100463) 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 as a sum of consecutive naturals, namely, 21072050211 + 21072050212.

It is an arithmetic number, because the mean of its divisors is an integer number (21072050212).

Almost surely, 2^42144100423 is an apocalyptic number.

42144100423 is a deficient number, since it is larger than the sum of its proper divisors (1).

42144100423 is an equidigital number, since it uses as much as digits as its factorization.

42144100423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 42144100423 its reverse (32400144124), we get a palindrome (74544244547).

The spelling of 42144100423 in words is "forty-two billion, one hundred forty-four million, one hundred thousand, four hundred twenty-three".