220131133 has 2 divisors, whose sum is σ = 220131134. Its totient is φ = 220131132.

The previous prime is 220131089. The next prime is 220131139. The reversal of 220131133 is 331131022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219573124 + 558009 = 14818^2 + 747^2 .

It is a cyclic number.

It is not a de Polignac number, because 220131133 - 2²⁵ = 186576701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220131139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110065566 + 110065567.

It is an arithmetic number, because the mean of its divisors is an integer number (110065567).

Almost surely, 2^220131133 is an apocalyptic number.

It is an amenable number.

220131133 is a deficient number, since it is larger than the sum of its proper divisors (1).

220131133 is an equidigital number, since it uses as much as digits as its factorization.

220131133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 220131133 is about 14836.8168081971. The cubic root of 220131133 is about 603.8009930539.

Adding to 220131133 its reverse (331131022), we get a palindrome (551262155).

The spelling of 220131133 in words is "two hundred twenty million, one hundred thirty-one thousand, one hundred thirty-three".