40111013 has 4 divisors (see below), whose sum is σ = 40134240. Its totient is φ = 40087788.

The previous prime is 40111009. The next prime is 40111051. The reversal of 40111013 is 31011104.

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 a cyclic number.

It is not a de Polignac number, because 40111013 - 2² = 40111009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40110985 and 40111003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40111003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8795 + ... + 12552.

It is an arithmetic number, because the mean of its divisors is an integer number (10033560).

Almost surely, 2^40111013 is an apocalyptic number.

It is an amenable number.

40111013 is a deficient number, since it is larger than the sum of its proper divisors (23227).

40111013 is a wasteful number, since it uses less digits than its factorization.

40111013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23226.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 40111013 is about 6333.3255877146. The cubic root of 40111013 is about 342.3112796972.

Adding to 40111013 its reverse (31011104), we get a palindrome (71122117).

Subtracting from 40111013 its reverse (31011104), we obtain a palindrome (9099909).

It can be divided in two parts, 4011101 and 3, that added together give a palindrome (4011104).

The spelling of 40111013 in words is "forty million, one hundred eleven thousand, thirteen".