11113231031 has 8 divisors (see below), whose sum is σ = 12708781344. Its totient is φ = 9519667200.

The previous prime is 11113231021. The next prime is 11113231037. The reversal of 11113231031 is 13013231111.

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 11113231031 - 2²⁶ = 11046122167 is a prime.

It is a super-2 number, since 2×11113231031² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11113231037) 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, 484610 + ... + 507023.

It is an arithmetic number, because the mean of its divisors is an integer number (1588597668).

Almost surely, 2^11113231031 is an apocalyptic number.

11113231031 is a deficient number, since it is larger than the sum of its proper divisors (1595550313).

11113231031 is an equidigital number, since it uses as much as digits as its factorization.

11113231031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993241.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 11113231031 its reverse (13013231111), we get a palindrome (24126462142).

The spelling of 11113231031 in words is "eleven billion, one hundred thirteen million, two hundred thirty-one thousand, thirty-one".