42033334121 has 2 divisors, whose sum is σ = 42033334122. Its totient is φ = 42033334120.

The previous prime is 42033334087. The next prime is 42033334127. The reversal of 42033334121 is 12143333024.

42033334121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41951232400 + 82101721 = 204820^2 + 9061^2 .

It is a cyclic number.

It is not a de Polignac number, because 42033334121 - 2¹⁴ = 42033317737 is a prime.

It is not a weakly prime, because it can be changed into another prime (42033334127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21016667060 + 21016667061.

It is an arithmetic number, because the mean of its divisors is an integer number (21016667061).

Almost surely, 2^42033334121 is an apocalyptic number.

It is an amenable number.

42033334121 is a deficient number, since it is larger than the sum of its proper divisors (1).

42033334121 is an equidigital number, since it uses as much as digits as its factorization.

42033334121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 42033334121 its reverse (12143333024), we get a palindrome (54176667145).

It can be divided in two parts, 420333 and 34121, that added together give a palindrome (454454).

The spelling of 42033334121 in words is "forty-two billion, thirty-three million, three hundred thirty-four thousand, one hundred twenty-one".