4242121133 has 2 divisors, whose sum is σ = 4242121134. Its totient is φ = 4242121132.

The previous prime is 4242121069. The next prime is 4242121139. The reversal of 4242121133 is 3311212424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4114837609 + 127283524 = 64147^2 + 11282^2 .

It is a cyclic number.

It is not a de Polignac number, because 4242121133 - 2⁶ = 4242121069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4242121099 and 4242121108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4242121139) 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, 2121060566 + 2121060567.

It is an arithmetic number, because the mean of its divisors is an integer number (2121060567).

Almost surely, 2^4242121133 is an apocalyptic number.

It is an amenable number.

4242121133 is a deficient number, since it is larger than the sum of its proper divisors (1).

4242121133 is an equidigital number, since it uses as much as digits as its factorization.

4242121133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 23.

The square root of 4242121133 is about 65131.5678684307. The cubic root of 4242121133 is about 1618.8043218296.

Adding to 4242121133 its reverse (3311212424), we get a palindrome (7553333557).

The spelling of 4242121133 in words is "four billion, two hundred forty-two million, one hundred twenty-one thousand, one hundred thirty-three".