4242121511 has 2 divisors, whose sum is σ = 4242121512. Its totient is φ = 4242121510.

The previous prime is 4242121501. The next prime is 4242121519. The reversal of 4242121511 is 1151212424.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4242121511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4242121519) 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, 2121060755 + 2121060756.

It is an arithmetic number, because the mean of its divisors is an integer number (2121060756).

Almost surely, 2^4242121511 is an apocalyptic number.

4242121511 is a deficient number, since it is larger than the sum of its proper divisors (1).

4242121511 is an equidigital number, since it uses as much as digits as its factorization.

4242121511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 640, while the sum is 23.

The square root of 4242121511 is about 65131.5707702494. The cubic root of 4242121511 is about 1618.8043699115.

Adding to 4242121511 its reverse (1151212424), we get a palindrome (5393333935).

The spelling of 4242121511 in words is "four billion, two hundred forty-two million, one hundred twenty-one thousand, five hundred eleven".