213390500671 has 2 divisors, whose sum is σ = 213390500672. Its totient is φ = 213390500670.

The previous prime is 213390500627. The next prime is 213390500689. The reversal of 213390500671 is 176005093312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213390500671 - 2¹¹ = 213390498623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213390500671.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213390500611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106695250335 + 106695250336.

It is an arithmetic number, because the mean of its divisors is an integer number (106695250336).

Almost surely, 2^213390500671 is an apocalyptic number.

213390500671 is a deficient number, since it is larger than the sum of its proper divisors (1).

213390500671 is an equidigital number, since it uses as much as digits as its factorization.

213390500671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 37.

Adding to 213390500671 its reverse (176005093312), we get a palindrome (389395593983).

The spelling of 213390500671 in words is "two hundred thirteen billion, three hundred ninety million, five hundred thousand, six hundred seventy-one".