131422442312 has 128 divisors (see below), whose sum is σ = 298585632000. Its totient is φ = 52975088640.

The previous prime is 131422442303. The next prime is 131422442339. The reversal of 131422442312 is 213244224131.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131817398 + ... + 131818394.

It is an arithmetic number, because the mean of its divisors is an integer number (2332700250).

Almost surely, 2^131422442312 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 131422442312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149292816000).

131422442312 is an abundant number, since it is smaller than the sum of its proper divisors (167163189688).

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

131422442312 is a wasteful number, since it uses less digits than its factorization.

131422442312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799 (or 1795 counting only the distinct ones).

The product of its digits is 9216, while the sum is 29.

Adding to 131422442312 its reverse (213244224131), we get a palindrome (344666666443).

The spelling of 131422442312 in words is "one hundred thirty-one billion, four hundred twenty-two million, four hundred forty-two thousand, three hundred twelve".