11031665231 has 8 divisors (see below), whose sum is σ = 11424072384. Its totient is φ = 10646082720.

The previous prime is 11031665219. The next prime is 11031665233. The reversal of 11031665231 is 13256613011.

11031665231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11031665231 - 2¹⁴ = 11031648847 is a prime.

It is a super-2 number, since 2×11031665231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11031665194 and 11031665203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031665233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1702871 + ... + 1709336.

It is an arithmetic number, because the mean of its divisors is an integer number (1428009048).

Almost surely, 2^11031665231 is an apocalyptic number.

11031665231 is a deficient number, since it is larger than the sum of its proper divisors (392407153).

11031665231 is an equidigital number, since it uses as much as digits as its factorization.

11031665231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3412321.

The product of its (nonzero) digits is 3240, while the sum is 29.

The spelling of 11031665231 in words is "eleven billion, thirty-one million, six hundred sixty-five thousand, two hundred thirty-one".