42041020164631 has 2 divisors, whose sum is σ = 42041020164632. Its totient is φ = 42041020164630.

The previous prime is 42041020164617. The next prime is 42041020164653. The reversal of 42041020164631 is 13646102014024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42041020164631 - 2⁹ = 42041020164119 is a prime.

It is a super-2 number, since 2×42041020164631² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42041080164631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21020510082315 + 21020510082316.

It is an arithmetic number, because the mean of its divisors is an integer number (21020510082316).

Almost surely, 2^{42041020164631} is an apocalyptic number.

42041020164631 is a deficient number, since it is larger than the sum of its proper divisors (1).

42041020164631 is an equidigital number, since it uses as much as digits as its factorization.

42041020164631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 34.

Adding to 42041020164631 its reverse (13646102014024), we get a palindrome (55687122178655).

The spelling of 42041020164631 in words is "forty-two trillion, forty-one billion, twenty million, one hundred sixty-four thousand, six hundred thirty-one".