131123132 has 24 divisors (see below), whose sum is σ = 262690176. Its totient is φ = 56100528.

The previous prime is 131123131. The next prime is 131123141. The reversal of 131123132 is 231321131.

It is a self number, because there is not a number n which added to its sum of digits gives 131123132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131123131) 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, 14363 + ... + 21645.

It is an arithmetic number, because the mean of its divisors is an integer number (10945424).

Almost surely, 2^131123132 is an apocalyptic number.

It is an amenable number.

131123132 is an abundant number, since it is smaller than the sum of its proper divisors (131567044).

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

131123132 is a wasteful number, since it uses less digits than its factorization.

131123132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7937 (or 7935 counting only the distinct ones).

The product of its digits is 108, while the sum is 17.

The square root of 131123132 is about 11450.9009252547. The cubic root of 131123132 is about 508.0343819084.

Adding to 131123132 its reverse (231321131), we get a palindrome (362444263).

The spelling of 131123132 in words is "one hundred thirty-one million, one hundred twenty-three thousand, one hundred thirty-two".