42104321131 has 2 divisors, whose sum is σ = 42104321132. Its totient is φ = 42104321130.

The previous prime is 42104321123. The next prime is 42104321143. The reversal of 42104321131 is 13112340124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42104321131 - 2³ = 42104321123 is a prime.

It is a super-2 number, since 2×42104321131² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42104321531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21052160565 + 21052160566.

It is an arithmetic number, because the mean of its divisors is an integer number (21052160566).

Almost surely, 2^42104321131 is an apocalyptic number.

42104321131 is a deficient number, since it is larger than the sum of its proper divisors (1).

42104321131 is an equidigital number, since it uses as much as digits as its factorization.

42104321131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 42104321131 its reverse (13112340124), we get a palindrome (55216661255).

The spelling of 42104321131 in words is "forty-two billion, one hundred four million, three hundred twenty-one thousand, one hundred thirty-one".