131122731322 has 16 divisors (see below), whose sum is σ = 214571814912. Its totient is φ = 59599201120.

The previous prime is 131122731317. The next prime is 131122731323. The reversal of 131122731322 is 223137221131.

It is not an unprimeable number, because it can be changed into a prime (131122731323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692838 + ... + 861550.

It is an arithmetic number, because the mean of its divisors is an integer number (13410738432).

Almost surely, 2^131122731322 is an apocalyptic number.

131122731322 is a deficient number, since it is larger than the sum of its proper divisors (83449083590).

131122731322 is a wasteful number, since it uses less digits than its factorization.

131122731322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204053.

The product of its digits is 3024, while the sum is 28.

Adding to 131122731322 its reverse (223137221131), we get a palindrome (354259952453).

The spelling of 131122731322 in words is "one hundred thirty-one billion, one hundred twenty-two million, seven hundred thirty-one thousand, three hundred twenty-two".