131021133 has 12 divisors (see below), whose sum is σ = 182622720. Its totient is φ = 83548696.

The previous prime is 131021119. The next prime is 131021147. The reversal of 131021133 is 331120131.

It is an interprime number because it is at equal distance from previous prime (131021119) and next prime (131021147).

It is not a de Polignac number, because 131021133 - 2⁶ = 131021069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131021633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39693 + ... + 42866.

It is an arithmetic number, because the mean of its divisors is an integer number (15218560).

Almost surely, 2^131021133 is an apocalyptic number.

It is an amenable number.

131021133 is a deficient number, since it is larger than the sum of its proper divisors (51601587).

131021133 is an equidigital number, since it uses as much as digits as its factorization.

131021133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82608 (or 82585 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 131021133 is about 11446.4463044213. The cubic root of 131021133 is about 507.9026165964.

Adding to 131021133 its reverse (331120131), we get a palindrome (462141264).

The spelling of 131021133 in words is "one hundred thirty-one million, twenty-one thousand, one hundred thirty-three".