11040042013 has 32 divisors (see below), whose sum is σ = 14836211712. Its totient is φ = 7933809600.

The previous prime is 11040041989. The next prime is 11040042037. The reversal of 11040042013 is 31024004011.

It is an interprime number because it is at equal distance from previous prime (11040041989) and next prime (11040042037).

It is a cyclic number.

It is not a de Polignac number, because 11040042013 - 2¹⁷ = 11039910941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11040042053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1288020 + ... + 1296562.

It is an arithmetic number, because the mean of its divisors is an integer number (463631616).

Almost surely, 2^11040042013 is an apocalyptic number.

11040042013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11040042013 is a deficient number, since it is larger than the sum of its proper divisors (3796169699).

11040042013 is a wasteful number, since it uses less digits than its factorization.

11040042013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9865.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 11040042013 its reverse (31024004011), we get a palindrome (42064046024).

The spelling of 11040042013 in words is "eleven billion, forty million, forty-two thousand, thirteen".