131101111424 has 128 divisors (see below), whose sum is σ = 282229920000. Its totient is φ = 60470350848.

The previous prime is 131101111423. The next prime is 131101111499. The reversal of 131101111424 is 424111101131.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 131101111396 and 131101111405.

It is not an unprimeable number, because it can be changed into a prime (131101111423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15348947 + ... + 15357485.

It is an arithmetic number, because the mean of its divisors is an integer number (2204921250).

Almost surely, 2^131101111424 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 131101111424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141114960000).

131101111424 is an abundant number, since it is smaller than the sum of its proper divisors (151128808576).

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

131101111424 is a wasteful number, since it uses less digits than its factorization.

131101111424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8738 (or 8726 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 131101111424 its reverse (424111101131), we get a palindrome (555212212555).

The spelling of 131101111424 in words is "one hundred thirty-one billion, one hundred one million, one hundred eleven thousand, four hundred twenty-four".