42121141324111 has 2 divisors, whose sum is σ = 42121141324112. Its totient is φ = 42121141324110.

The previous prime is 42121141324091. The next prime is 42121141324117. The reversal of 42121141324111 is 11142314112124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42121141324111 - 2⁷ = 42121141323983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42121141324111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42121141324117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21060570662055 + 21060570662056.

It is an arithmetic number, because the mean of its divisors is an integer number (21060570662056).

Almost surely, 2^{42121141324111} is an apocalyptic number.

42121141324111 is a deficient number, since it is larger than the sum of its proper divisors (1).

42121141324111 is an equidigital number, since it uses as much as digits as its factorization.

42121141324111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1536, while the sum is 28.

Adding to 42121141324111 its reverse (11142314112124), we get a palindrome (53263455436235).

The spelling of 42121141324111 in words is "forty-two trillion, one hundred twenty-one billion, one hundred forty-one million, three hundred twenty-four thousand, one hundred eleven".