40103113 has 2 divisors, whose sum is σ = 40103114. Its totient is φ = 40103112.

The previous prime is 40103111. The next prime is 40103179. The reversal of 40103113 is 31130104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39601849 + 501264 = 6293^2 + 708^2 .

It is a cyclic number.

It is not a de Polignac number, because 40103113 - 2¹ = 40103111 is a prime.

Together with 40103111, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 40103093 and 40103102.

It is not a weakly prime, because it can be changed into another prime (40103111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20051556 + 20051557.

It is an arithmetic number, because the mean of its divisors is an integer number (20051557).

Almost surely, 2^40103113 is an apocalyptic number.

It is an amenable number.

40103113 is a deficient number, since it is larger than the sum of its proper divisors (1).

40103113 is an equidigital number, since it uses as much as digits as its factorization.

40103113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 40103113 is about 6332.7018720290. The cubic root of 40103113 is about 342.2888050993.

Adding to 40103113 its reverse (31130104), we get a palindrome (71233217).

The spelling of 40103113 in words is "forty million, one hundred three thousand, one hundred thirteen".