131123120244 has 96 divisors (see below), whose sum is σ = 327389368320. Its totient is φ = 40744492800.

The previous prime is 131123120243. The next prime is 131123120269. The reversal of 131123120244 is 442021321131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131123120243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11661177 + ... + 11672415.

It is an arithmetic number, because the mean of its divisors is an integer number (3410305920).

Almost surely, 2^131123120244 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 131123120244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163694684160).

131123120244 is an abundant number, since it is smaller than the sum of its proper divisors (196266248076).

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

131123120244 is a wasteful number, since it uses less digits than its factorization.

131123120244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12341 (or 12339 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 131123120244 its reverse (442021321131), we get a palindrome (573144441375).

The spelling of 131123120244 in words is "one hundred thirty-one billion, one hundred twenty-three million, one hundred twenty thousand, two hundred forty-four".