131112331 has 8 divisors (see below), whose sum is σ = 157729280. Its totient is φ = 106467048.

The previous prime is 131112329. The next prime is 131112341. The reversal of 131112331 is 133211131.

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 131112331 - 2¹ = 131112329 is a prime.

It is a super-2 number, since 2×131112331² = 34380886680507122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131112341) 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, 492771 + ... + 493036.

It is an arithmetic number, because the mean of its divisors is an integer number (19716160).

Almost surely, 2^131112331 is an apocalyptic number.

131112331 is a deficient number, since it is larger than the sum of its proper divisors (26616949).

131112331 is an equidigital number, since it uses as much as digits as its factorization.

131112331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985833.

The product of its digits is 54, while the sum is 16.

The square root of 131112331 is about 11450.4292932623. The cubic root of 131112331 is about 508.0204320941.

Adding to 131112331 its reverse (133211131), we get a palindrome (264323462).

The spelling of 131112331 in words is "one hundred thirty-one million, one hundred twelve thousand, three hundred thirty-one".