131032111120 has 40 divisors (see below), whose sum is σ = 305196709464. Its totient is φ = 52318728192.

The previous prime is 131032111073. The next prime is 131032111123. The reversal of 131032111120 is 21111230131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11725424656 + 119306686464 = 108284^2 + 345408^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 131032111094 and 131032111103.

It is not an unprimeable number, because it can be changed into a prime (131032111123) 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, 1425729 + ... + 1514848.

Almost surely, 2^131032111120 is an apocalyptic number.

131032111120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131032111120 is an abundant number, since it is smaller than the sum of its proper divisors (174164598344).

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

131032111120 is a wasteful number, since it uses less digits than its factorization.

131032111120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2941147 (or 2941141 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 131032111120 its reverse (21111230131), we get a palindrome (152143341251).

The spelling of 131032111120 in words is "one hundred thirty-one billion, thirty-two million, one hundred eleven thousand, one hundred twenty".