42110111122231 has 2 divisors, whose sum is σ = 42110111122232. Its totient is φ = 42110111122230.

The previous prime is 42110111122141. The next prime is 42110111122241. The reversal of 42110111122231 is 13222111101124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42110111122231 - 2²¹ = 42110109025079 is a prime.

It is a super-2 number, since 2×42110111122231² (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 (42110111122241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21055055561115 + 21055055561116.

It is an arithmetic number, because the mean of its divisors is an integer number (21055055561116).

Almost surely, 2^{42110111122231} is an apocalyptic number.

42110111122231 is a deficient number, since it is larger than the sum of its proper divisors (1).

42110111122231 is an equidigital number, since it uses as much as digits as its factorization.

42110111122231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 22.

Adding to 42110111122231 its reverse (13222111101124), we get a palindrome (55332222223355).

The spelling of 42110111122231 in words is "forty-two trillion, one hundred ten billion, one hundred eleven million, one hundred twenty-two thousand, two hundred thirty-one".