2131302131322 has 256 divisors, whose sum is σ = 5484923609088. Its totient is φ = 537107604480.

The previous prime is 2131302131303. The next prime is 2131302131323. The reversal of 2131302131322 is 2231312031312.

It is a junction number, because it is equal to n+sod(n) for n = 2131302131292 and 2131302131301.

It is not an unprimeable number, because it can be changed into a prime (2131302131323) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1309957473 + ... + 1309959099.

It is an arithmetic number, because the mean of its divisors is an integer number (21425482848).

Almost surely, 2^{2131302131322} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2131302131322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2742461804544).

2131302131322 is an abundant number, since it is smaller than the sum of its proper divisors (3353621477766).

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

2131302131322 is a wasteful number, since it uses less digits than its factorization.

2131302131322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2813.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 2131302131322 its reverse (2231312031312), we get a palindrome (4362614162634).

The spelling of 2131302131322 in words is "two trillion, one hundred thirty-one billion, three hundred two million, one hundred thirty-one thousand, three hundred twenty-two".