131216124 has 48 divisors (see below), whose sum is σ = 335152160. Its totient is φ = 39709440.

The previous prime is 131216119. The next prime is 131216143. The reversal of 131216124 is 421612131.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 131216124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2622 + ... + 16410.

Almost surely, 2^131216124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131216124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167576080).

131216124 is an abundant number, since it is smaller than the sum of its proper divisors (203936036).

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

131216124 is a wasteful number, since it uses less digits than its factorization.

131216124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13870 (or 13868 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

The square root of 131216124 is about 11454.9606721280. The cubic root of 131216124 is about 508.1544521780.

Adding to 131216124 its reverse (421612131), we get a palindrome (552828255).

The spelling of 131216124 in words is "one hundred thirty-one million, two hundred sixteen thousand, one hundred twenty-four".