42104122231 has 2 divisors, whose sum is σ = 42104122232. Its totient is φ = 42104122230.

The previous prime is 42104122201. The next prime is 42104122243. The reversal of 42104122231 is 13222140124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42104122231 - 2⁵ = 42104122199 is a prime.

It is a super-2 number, since 2×42104122231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42104122201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21052061115 + 21052061116.

It is an arithmetic number, because the mean of its divisors is an integer number (21052061116).

Almost surely, 2^42104122231 is an apocalyptic number.

42104122231 is a deficient number, since it is larger than the sum of its proper divisors (1).

42104122231 is an equidigital number, since it uses as much as digits as its factorization.

42104122231 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 22.

Adding to 42104122231 its reverse (13222140124), we get a palindrome (55326262355).

The spelling of 42104122231 in words is "forty-two billion, one hundred four million, one hundred twenty-two thousand, two hundred thirty-one".