40103013 has 4 divisors (see below), whose sum is σ = 53470688. Its totient is φ = 26735340.

The previous prime is 40103009. The next prime is 40103039. The reversal of 40103013 is 31030104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40103013 - 2² = 40103009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40103013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40103113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6683833 + ... + 6683838.

It is an arithmetic number, because the mean of its divisors is an integer number (13367672).

Almost surely, 2^40103013 is an apocalyptic number.

It is an amenable number.

40103013 is a deficient number, since it is larger than the sum of its proper divisors (13367675).

40103013 is a wasteful number, since it uses less digits than its factorization.

40103013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13367674.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 40103013 is about 6332.6939765000. The cubic root of 40103013 is about 342.2885205918.

Adding to 40103013 its reverse (31030104), we get a palindrome (71133117).

The spelling of 40103013 in words is "forty million, one hundred three thousand, thirteen".