42111331429 has 2 divisors, whose sum is σ = 42111331430. Its totient is φ = 42111331428.

The previous prime is 42111331399. The next prime is 42111331571. The reversal of 42111331429 is 92413311124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35085036100 + 7026295329 = 187310^2 + 83823^2 .

It is a cyclic number.

It is not a de Polignac number, because 42111331429 - 2¹⁷ = 42111200357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42111331429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42111331729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21055665714 + 21055665715.

It is an arithmetic number, because the mean of its divisors is an integer number (21055665715).

Almost surely, 2^42111331429 is an apocalyptic number.

It is an amenable number.

42111331429 is a deficient number, since it is larger than the sum of its proper divisors (1).

42111331429 is an equidigital number, since it uses as much as digits as its factorization.

42111331429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 31.

The spelling of 42111331429 in words is "forty-two billion, one hundred eleven million, three hundred thirty-one thousand, four hundred twenty-nine".