42101113 has 2 divisors, whose sum is σ = 42101114. Its totient is φ = 42101112.

The previous prime is 42101099. The next prime is 42101117. The reversal of 42101113 is 31110124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42029289 + 71824 = 6483^2 + 268^2 .

It is a cyclic number.

It is not a de Polignac number, because 42101113 - 2²¹ = 40003961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42101093 and 42101102.

It is not a weakly prime, because it can be changed into another prime (42101117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21050556 + 21050557.

It is an arithmetic number, because the mean of its divisors is an integer number (21050557).

Almost surely, 2^42101113 is an apocalyptic number.

It is an amenable number.

42101113 is a deficient number, since it is larger than the sum of its proper divisors (1).

42101113 is an equidigital number, since it uses as much as digits as its factorization.

42101113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 42101113 is about 6488.5370462069. The cubic root of 42101113 is about 347.8813865589.

Adding to 42101113 its reverse (31110124), we get a palindrome (73211237).

The spelling of 42101113 in words is "forty-two million, one hundred one thousand, one hundred thirteen".