131111233 has 8 divisors (see below), whose sum is σ = 147962880. Its totient is φ = 115081680.

The previous prime is 131111221. The next prime is 131111243. The reversal of 131111233 is 332111131.

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 131111233 - 2¹³ = 131103041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131111243) 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, 205185 + ... + 205822.

It is an arithmetic number, because the mean of its divisors is an integer number (18495360).

Almost surely, 2^131111233 is an apocalyptic number.

It is an amenable number.

131111233 is a deficient number, since it is larger than the sum of its proper divisors (16851647).

131111233 is a wasteful number, since it uses less digits than its factorization.

131111233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411047.

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

The square root of 131111233 is about 11450.3813473613. The cubic root of 131111233 is about 508.0190139513.

Adding to 131111233 its reverse (332111131), we get a palindrome (463222364).

It can be divided in two parts, 1311 and 11233, that added together give a square (12544 = 112²).

The spelling of 131111233 in words is "one hundred thirty-one million, one hundred eleven thousand, two hundred thirty-three".