102113213 has 2 divisors, whose sum is σ = 102113214. Its totient is φ = 102113212.

The previous prime is 102113197. The next prime is 102113251. The reversal of 102113213 is 312311201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101646724 + 466489 = 10082^2 + 683^2 .

It is a cyclic number.

It is not a de Polignac number, because 102113213 - 2⁴ = 102113197 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102113513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51056606 + 51056607.

It is an arithmetic number, because the mean of its divisors is an integer number (51056607).

Almost surely, 2^102113213 is an apocalyptic number.

It is an amenable number.

102113213 is a deficient number, since it is larger than the sum of its proper divisors (1).

102113213 is an equidigital number, since it uses as much as digits as its factorization.

102113213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 102113213 is about 10105.1082626561. The cubic root of 102113213 is about 467.4056743933.

Adding to 102113213 its reverse (312311201), we get a palindrome (414424414).

The spelling of 102113213 in words is "one hundred two million, one hundred thirteen thousand, two hundred thirteen".