211372103 has 4 divisors (see below), whose sum is σ = 211628520. Its totient is φ = 211115688.

The previous prime is 211372099. The next prime is 211372121. The reversal of 211372103 is 301273112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211372103 - 2² = 211372099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211372153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126968 + ... + 128621.

It is an arithmetic number, because the mean of its divisors is an integer number (52907130).

Almost surely, 2^211372103 is an apocalyptic number.

211372103 is a deficient number, since it is larger than the sum of its proper divisors (256417).

211372103 is an equidigital number, since it uses as much as digits as its factorization.

211372103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256416.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 211372103 is about 14538.6417178497. The cubic root of 211372103 is about 595.6839373022.

The spelling of 211372103 in words is "two hundred eleven million, three hundred seventy-two thousand, one hundred three".