4105111993 has 2 divisors, whose sum is σ = 4105111994. Its totient is φ = 4105111992.

The previous prime is 4105111991. The next prime is 4105111999. The reversal of 4105111993 is 3991115014.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2176409104 + 1928702889 = 46652^2 + 43917^2 .

It is a cyclic number.

It is not a de Polignac number, because 4105111993 - 2¹ = 4105111991 is a prime.

Together with 4105111991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4105111991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2052555996 + 2052555997.

It is an arithmetic number, because the mean of its divisors is an integer number (2052555997).

Almost surely, 2^4105111993 is an apocalyptic number.

It is an amenable number.

4105111993 is a deficient number, since it is larger than the sum of its proper divisors (1).

4105111993 is an equidigital number, since it uses as much as digits as its factorization.

4105111993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 34.

The square root of 4105111993 is about 64071.1478982545. The cubic root of 4105111993 is about 1601.1855787068.

The spelling of 4105111993 in words is "four billion, one hundred five million, one hundred eleven thousand, nine hundred ninety-three".