42114013421 has 2 divisors, whose sum is σ = 42114013422. Its totient is φ = 42114013420.

The previous prime is 42114013393. The next prime is 42114013427. The reversal of 42114013421 is 12431041124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37281817225 + 4832196196 = 193085^2 + 69514^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42114013421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42114013427) 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, 21057006710 + 21057006711.

It is an arithmetic number, because the mean of its divisors is an integer number (21057006711).

Almost surely, 2^42114013421 is an apocalyptic number.

It is an amenable number.

42114013421 is a deficient number, since it is larger than the sum of its proper divisors (1).

42114013421 is an equidigital number, since it uses as much as digits as its factorization.

42114013421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 42114013421 its reverse (12431041124), we get a palindrome (54545054545).

The spelling of 42114013421 in words is "forty-two billion, one hundred fourteen million, thirteen thousand, four hundred twenty-one".