42021102413 has 2 divisors, whose sum is σ = 42021102414. Its totient is φ = 42021102412.

The previous prime is 42021102349. The next prime is 42021102433. The reversal of 42021102413 is 31420112024.

It is an a-pointer prime, because the next prime (42021102433) can be obtained adding 42021102413 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42013930729 + 7171684 = 204973^2 + 2678^2 .

It is a cyclic number.

It is not a de Polignac number, because 42021102413 - 2⁶ = 42021102349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42021102433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21010551206 + 21010551207.

It is an arithmetic number, because the mean of its divisors is an integer number (21010551207).

Almost surely, 2^42021102413 is an apocalyptic number.

It is an amenable number.

42021102413 is a deficient number, since it is larger than the sum of its proper divisors (1).

42021102413 is an equidigital number, since it uses as much as digits as its factorization.

42021102413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 42021102413 its reverse (31420112024), we get a palindrome (73441214437).

The spelling of 42021102413 in words is "forty-two billion, twenty-one million, one hundred two thousand, four hundred thirteen".