2131335133 has 2 divisors, whose sum is σ = 2131335134. Its totient is φ = 2131335132.

The previous prime is 2131335109. The next prime is 2131335137. The reversal of 2131335133 is 3315331312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1648522404 + 482812729 = 40602^2 + 21973^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2131335133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2131335098 and 2131335107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131335137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065667566 + 1065667567.

It is an arithmetic number, because the mean of its divisors is an integer number (1065667567).

Almost surely, 2^2131335133 is an apocalyptic number.

It is an amenable number.

2131335133 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131335133 is an equidigital number, since it uses as much as digits as its factorization.

2131335133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2430, while the sum is 25.

The square root of 2131335133 is about 46166.3853144255. The cubic root of 2131335133 is about 1286.9171286681.

Adding to 2131335133 its reverse (3315331312), we get a palindrome (5446666445).

The spelling of 2131335133 in words is "two billion, one hundred thirty-one million, three hundred thirty-five thousand, one hundred thirty-three".