11111034231 has 24 divisors (see below), whose sum is σ = 17532103680. Its totient is φ = 6724803600.

The previous prime is 11111034217. The next prime is 11111034239. The reversal of 11111034231 is 13243011111.

It is a happy number.

It is not a de Polignac number, because 11111034231 - 2¹⁰ = 11111033207 is a prime.

It is a super-2 number, since 2×11111034231² (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 (11111034239) 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 23 ways as a sum of consecutive naturals, for example, 2775 + ... + 149096.

It is an arithmetic number, because the mean of its divisors is an integer number (730504320).

Almost surely, 2^11111034231 is an apocalyptic number.

11111034231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11111034231 is a deficient number, since it is larger than the sum of its proper divisors (6421069449).

11111034231 is a wasteful number, since it uses less digits than its factorization.

11111034231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152627 (or 152624 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 11111034231 its reverse (13243011111), we get a palindrome (24354045342).

The spelling of 11111034231 in words is "eleven billion, one hundred eleven million, thirty-four thousand, two hundred thirty-one".