111106131 has 4 divisors (see below), whose sum is σ = 148141512. Its totient is φ = 74070752.

The previous prime is 111106117. The next prime is 111106133. The reversal of 111106131 is 131601111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131601111 = 3 ⋅43867037.

It is a cyclic number.

It is not a de Polignac number, because 111106131 - 2⁷ = 111106003 is a prime.

It is a super-2 number, since 2×111106131² = 24689144691578322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111106131.

It is not an unprimeable number, because it can be changed into a prime (111106133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18517686 + ... + 18517691.

It is an arithmetic number, because the mean of its divisors is an integer number (37035378).

Almost surely, 2^111106131 is an apocalyptic number.

111106131 is a deficient number, since it is larger than the sum of its proper divisors (37035381).

111106131 is an equidigital number, since it uses as much as digits as its factorization.

111106131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37035380.

The product of its (nonzero) digits is 18, while the sum is 15.

The square root of 111106131 is about 10540.6893038359. The cubic root of 111106131 is about 480.7426740987.

Adding to 111106131 its reverse (131601111), we get a palindrome (242707242).

The spelling of 111106131 in words is "one hundred eleven million, one hundred six thousand, one hundred thirty-one".