42811103393 has 2 divisors, whose sum is σ = 42811103394. Its totient is φ = 42811103392.

The previous prime is 42811103303. The next prime is 42811103399. The reversal of 42811103393 is 39330111824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40946331904 + 1864771489 = 202352^2 + 43183^2 .

It is a cyclic number.

It is not a de Polignac number, because 42811103393 - 2²⁶ = 42743994529 is a prime.

It is a super-2 number, since 2×42811103393² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42811103399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21405551696 + 21405551697.

It is an arithmetic number, because the mean of its divisors is an integer number (21405551697).

Almost surely, 2^42811103393 is an apocalyptic number.

It is an amenable number.

42811103393 is a deficient number, since it is larger than the sum of its proper divisors (1).

42811103393 is an equidigital number, since it uses as much as digits as its factorization.

42811103393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 35.

The spelling of 42811103393 in words is "forty-two billion, eight hundred eleven million, one hundred three thousand, three hundred ninety-three".