213341031481 has 2 divisors, whose sum is σ = 213341031482. Its totient is φ = 213341031480.

The previous prime is 213341031473. The next prime is 213341031551. The reversal of 213341031481 is 184130143312.

213341031481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118674049081 + 94666982400 = 344491^2 + 307680^2 .

It is a cyclic number.

It is not a de Polignac number, because 213341031481 - 2³ = 213341031473 is a prime.

It is a super-2 number, since 2×213341031481² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (213341031401) 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, 106670515740 + 106670515741.

It is an arithmetic number, because the mean of its divisors is an integer number (106670515741).

Almost surely, 2^213341031481 is an apocalyptic number.

It is an amenable number.

213341031481 is a deficient number, since it is larger than the sum of its proper divisors (1).

213341031481 is an equidigital number, since it uses as much as digits as its factorization.

213341031481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 213341031481 its reverse (184130143312), we get a palindrome (397471174793).

The spelling of 213341031481 in words is "two hundred thirteen billion, three hundred forty-one million, thirty-one thousand, four hundred eighty-one".