42124121119 has 2 divisors, whose sum is σ = 42124121120. Its totient is φ = 42124121118.

The previous prime is 42124121101. The next prime is 42124121141. The reversal of 42124121119 is 91112142124.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42124121119 - 2¹⁵ = 42124088351 is a prime.

It is a super-2 number, since 2×42124121119² (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 (42124121219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21062060559 + 21062060560.

It is an arithmetic number, because the mean of its divisors is an integer number (21062060560).

Almost surely, 2^42124121119 is an apocalyptic number.

42124121119 is a deficient number, since it is larger than the sum of its proper divisors (1).

42124121119 is an equidigital number, since it uses as much as digits as its factorization.

42124121119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 28.

The spelling of 42124121119 in words is "forty-two billion, one hundred twenty-four million, one hundred twenty-one thousand, one hundred nineteen".