11040311231 has 8 divisors (see below), whose sum is σ = 11150887440. Its totient is φ = 10929904128.

The previous prime is 11040311179. The next prime is 11040311237. The reversal of 11040311231 is 13211304011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11040311231 - 2¹⁴ = 11040294847 is a prime.

It is a super-2 number, since 2×11040311231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11040311237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91040 + ... + 174266.

It is an arithmetic number, because the mean of its divisors is an integer number (1393860930).

Almost surely, 2^11040311231 is an apocalyptic number.

11040311231 is a deficient number, since it is larger than the sum of its proper divisors (110576209).

11040311231 is a wasteful number, since it uses less digits than its factorization.

11040311231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84553.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11040311231 its reverse (13211304011), we get a palindrome (24251615242).

The spelling of 11040311231 in words is "eleven billion, forty million, three hundred eleven thousand, two hundred thirty-one".