42203430193 has 2 divisors, whose sum is σ = 42203430194. Its totient is φ = 42203430192.

The previous prime is 42203430161. The next prime is 42203430221. The reversal of 42203430193 is 39103430224.

42203430193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41592747249 + 610682944 = 203943^2 + 24712^2 .

It is a cyclic number.

It is not a de Polignac number, because 42203430193 - 2⁵ = 42203430161 is a prime.

It is a super-2 number, since 2×42203430193² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42203436193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21101715096 + 21101715097.

It is an arithmetic number, because the mean of its divisors is an integer number (21101715097).

Almost surely, 2^42203430193 is an apocalyptic number.

It is an amenable number.

42203430193 is a deficient number, since it is larger than the sum of its proper divisors (1).

42203430193 is an equidigital number, since it uses as much as digits as its factorization.

42203430193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 42203430193 its sum of digits (31), we get a palindrome (42203430224).

The spelling of 42203430193 in words is "forty-two billion, two hundred three million, four hundred thirty thousand, one hundred ninety-three".