213538103 has 2 divisors, whose sum is σ = 213538104. Its totient is φ = 213538102.

The previous prime is 213538097. The next prime is 213538111. The reversal of 213538103 is 301835312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213538103 - 2¹² = 213534007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213538123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106769051 + 106769052.

It is an arithmetic number, because the mean of its divisors is an integer number (106769052).

Almost surely, 2^213538103 is an apocalyptic number.

213538103 is a deficient number, since it is larger than the sum of its proper divisors (1).

213538103 is an equidigital number, since it uses as much as digits as its factorization.

213538103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 213538103 is about 14612.9429958513. The cubic root of 213538103 is about 597.7117500214.

The spelling of 213538103 in words is "two hundred thirteen million, five hundred thirty-eight thousand, one hundred three".