111693131 has 8 divisors (see below), whose sum is σ = 123217200. Its totient is φ = 100397440.

The previous prime is 111693119. The next prime is 111693133. The reversal of 111693131 is 131396111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111693131 - 2⁶ = 111693067 is a prime.

It is a super-2 number, since 2×111693131² = 24950711025166322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111693131.

It is not an unprimeable number, because it can be changed into a prime (111693133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56066 + ... + 58023.

It is an arithmetic number, because the mean of its divisors is an integer number (15402150).

Almost surely, 2^111693131 is an apocalyptic number.

111693131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111693131 is a deficient number, since it is larger than the sum of its proper divisors (11524069).

111693131 is a wasteful number, since it uses less digits than its factorization.

111693131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114189.

The product of its digits is 486, while the sum is 26.

The square root of 111693131 is about 10568.4971022374. The cubic root of 111693131 is about 481.5878132804.

The spelling of 111693131 in words is "one hundred eleven million, six hundred ninety-three thousand, one hundred thirty-one".