131122131313 has 32 divisors (see below), whose sum is σ = 141586993152. Its totient is φ = 121127529600.

The previous prime is 131122131293. The next prime is 131122131317. The reversal of 131122131313 is 313131221131.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131122131313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131122131317) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36716818 + ... + 36720388.

It is an arithmetic number, because the mean of its divisors is an integer number (4424593536).

Almost surely, 2^131122131313 is an apocalyptic number.

It is an amenable number.

131122131313 is a deficient number, since it is larger than the sum of its proper divisors (10464861839).

131122131313 is a wasteful number, since it uses less digits than its factorization.

131122131313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4045.

The product of its digits is 324, while the sum is 22.

Adding to 131122131313 its reverse (313131221131), we get a palindrome (444253352444).

The spelling of 131122131313 in words is "one hundred thirty-one billion, one hundred twenty-two million, one hundred thirty-one thousand, three hundred thirteen".