131231201322 has 16 divisors (see below), whose sum is σ = 282651818400. Its totient is φ = 40378831152.

The previous prime is 131231201303. The next prime is 131231201333. The reversal of 131231201322 is 223102132131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 841225572 + ... + 841225727.

It is an arithmetic number, because the mean of its divisors is an integer number (17665738650).

Almost surely, 2^131231201322 is an apocalyptic number.

131231201322 is an abundant number, since it is smaller than the sum of its proper divisors (151420617078).

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

131231201322 is a wasteful number, since it uses less digits than its factorization.

131231201322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682451317.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 131231201322 its reverse (223102132131), we get a palindrome (354333333453).

The spelling of 131231201322 in words is "one hundred thirty-one billion, two hundred thirty-one million, two hundred one thousand, three hundred twenty-two".