131112120 has 32 divisors (see below), whose sum is σ = 393336720. Its totient is φ = 34963200.

The previous prime is 131112097. The next prime is 131112131. The reversal of 131112120 is 21211131.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 131112096 and 131112105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 546181 + ... + 546420.

Almost surely, 2^131112120 is an apocalyptic number.

131112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131112120 is an abundant number, since it is smaller than the sum of its proper divisors (262224600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131112120 is a wasteful number, since it uses less digits than its factorization.

131112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092615 (or 1092611 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 131112120 is about 11450.4200796303. The cubic root of 131112120 is about 508.0201595736.

Adding to 131112120 its reverse (21211131), we get a palindrome (152323251).

It can be divided in two parts, 1311 and 12120, that added together give a palindrome (13431).

The spelling of 131112120 in words is "one hundred thirty-one million, one hundred twelve thousand, one hundred twenty".