131113733 has 2 divisors, whose sum is σ = 131113734. Its totient is φ = 131113732.

The previous prime is 131113709. The next prime is 131113739. The reversal of 131113733 is 337311131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107474689 + 23639044 = 10367^2 + 4862^2 .

It is a cyclic number.

It is not a de Polignac number, because 131113733 - 2¹⁴ = 131097349 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131113699 and 131113708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131113739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65556866 + 65556867.

It is an arithmetic number, because the mean of its divisors is an integer number (65556867).

Almost surely, 2^131113733 is an apocalyptic number.

It is an amenable number.

131113733 is a deficient number, since it is larger than the sum of its proper divisors (1).

131113733 is an equidigital number, since it uses as much as digits as its factorization.

131113733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 567, while the sum is 23.

The square root of 131113733 is about 11450.4905135108. The cubic root of 131113733 is about 508.0222428622.

Adding to 131113733 its reverse (337311131), we get a palindrome (468424864).

The spelling of 131113733 in words is "one hundred thirty-one million, one hundred thirteen thousand, seven hundred thirty-three".