213110503 has 2 divisors, whose sum is σ = 213110504. Its totient is φ = 213110502.

The previous prime is 213110501. The next prime is 213110629. The reversal of 213110503 is 305011312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213110503 - 2¹ = 213110501 is a prime.

Together with 213110501, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213110501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106555251 + 106555252.

It is an arithmetic number, because the mean of its divisors is an integer number (106555252).

Almost surely, 2^213110503 is an apocalyptic number.

213110503 is a deficient number, since it is larger than the sum of its proper divisors (1).

213110503 is an equidigital number, since it uses as much as digits as its factorization.

213110503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 213110503 is about 14598.3047988457. The cubic root of 213110503 is about 597.3125202081.

Adding to 213110503 its reverse (305011312), we get a palindrome (518121815).

The spelling of 213110503 in words is "two hundred thirteen million, one hundred ten thousand, five hundred three".