131112123 has 8 divisors (see below), whose sum is σ = 174875136. Its totient is φ = 87378600.

The previous prime is 131112097. The next prime is 131112131. The reversal of 131112123 is 321211131.

It is a happy number.

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

It is not a de Polignac number, because 131112123 - 2¹⁴ = 131095739 is a prime.

It is a super-3 number, since 3×131112123³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (131112173) 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, 7018 + ... + 17648.

It is an arithmetic number, because the mean of its divisors is an integer number (21859392).

Almost surely, 2^131112123 is an apocalyptic number.

131112123 is a deficient number, since it is larger than the sum of its proper divisors (43763013).

131112123 is a wasteful number, since it uses less digits than its factorization.

131112123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14745.

The product of its digits is 36, while the sum is 15.

The square root of 131112123 is about 11450.4202106298. The cubic root of 131112123 is about 508.0201634483.

Adding to 131112123 its reverse (321211131), we get a palindrome (452323254).

The spelling of 131112123 in words is "one hundred thirty-one million, one hundred twelve thousand, one hundred twenty-three".