213117007 has 2 divisors, whose sum is σ = 213117008. Its totient is φ = 213117006.

The previous prime is 213116999. The next prime is 213117029. The reversal of 213117007 is 700711312.

It is an a-pointer prime, because the next prime (213117029) can be obtained adding 213117007 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213117007 - 2³ = 213116999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213117067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106558503 + 106558504.

It is an arithmetic number, because the mean of its divisors is an integer number (106558504).

Almost surely, 2^213117007 is an apocalyptic number.

213117007 is a deficient number, since it is larger than the sum of its proper divisors (1).

213117007 is an equidigital number, since it uses as much as digits as its factorization.

213117007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 294, while the sum is 22.

The square root of 213117007 is about 14598.5275627373. The cubic root of 213117007 is about 597.3185966818.

Adding to 213117007 its reverse (700711312), we get a palindrome (913828319).

The spelling of 213117007 in words is "two hundred thirteen million, one hundred seventeen thousand, seven".