3131201321322 has 16 divisors (see below), whose sum is σ = 6365064981792. Its totient is φ = 1026623383920.

The previous prime is 3131201321257. The next prime is 3131201321351. The reversal of 3131201321322 is 2231231021313.

It is a junction number, because it is equal to n+sod(n) for n = 3131201321292 and 3131201321301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4277597068 + ... + 4277597799.

It is an arithmetic number, because the mean of its divisors is an integer number (397816561362).

Almost surely, 2^{3131201321322} is an apocalyptic number.

3131201321322 is an abundant number, since it is smaller than the sum of its proper divisors (3233863660470).

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

3131201321322 is a wasteful number, since it uses less digits than its factorization.

3131201321322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8555194933.

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

Adding to 3131201321322 its reverse (2231231021313), we get a palindrome (5362432342635).

The spelling of 3131201321322 in words is "three trillion, one hundred thirty-one billion, two hundred one million, three hundred twenty-one thousand, three hundred twenty-two".