131111032313 has 2 divisors, whose sum is σ = 131111032314. Its totient is φ = 131111032312.

The previous prime is 131111032303. The next prime is 131111032321. The reversal of 131111032313 is 313230111131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108944884624 + 22166147689 = 330068^2 + 148883^2 .

It is a cyclic number.

It is not a de Polignac number, because 131111032313 - 2⁸ = 131111032057 is a prime.

It is not a weakly prime, because it can be changed into another prime (131111032303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65555516156 + 65555516157.

It is an arithmetic number, because the mean of its divisors is an integer number (65555516157).

Almost surely, 2^131111032313 is an apocalyptic number.

It is an amenable number.

131111032313 is a deficient number, since it is larger than the sum of its proper divisors (1).

131111032313 is an equidigital number, since it uses as much as digits as its factorization.

131111032313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 131111032313 its reverse (313230111131), we get a palindrome (444341143444).

The spelling of 131111032313 in words is "one hundred thirty-one billion, one hundred eleven million, thirty-two thousand, three hundred thirteen".