11131132111 has 8 divisors (see below), whose sum is σ = 12152219904. Its totient is φ = 10111572120.

The previous prime is 11131132099. The next prime is 11131132123. The reversal of 11131132111 is 11123113111.

It is an interprime number because it is at equal distance from previous prime (11131132099) and next prime (11131132123).

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 11131132111 - 2⁷ = 11131131983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131132151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366685 + ... + 395878.

It is an arithmetic number, because the mean of its divisors is an integer number (1519027488).

Almost surely, 2^11131132111 is an apocalyptic number.

11131132111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11131132111 is a deficient number, since it is larger than the sum of its proper divisors (1021087793).

11131132111 is a wasteful number, since it uses less digits than its factorization.

11131132111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763901.

The product of its digits is 18, while the sum is 16.

Adding to 11131132111 its reverse (11123113111), we get a palindrome (22254245222).

The spelling of 11131132111 in words is "eleven billion, one hundred thirty-one million, one hundred thirty-two thousand, one hundred eleven".