211301031103 has 4 divisors (see below), whose sum is σ = 211378461840. Its totient is φ = 211223600368.

The previous prime is 211301031101. The next prime is 211301031107. The reversal of 211301031103 is 301130103112.

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 211301031103 - 2¹ = 211301031101 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 (211301031101) 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, 38711275 + ... + 38716732.

It is an arithmetic number, because the mean of its divisors is an integer number (52844615460).

Almost surely, 2^211301031103 is an apocalyptic number.

211301031103 is a deficient number, since it is larger than the sum of its proper divisors (77430737).

211301031103 is an equidigital number, since it uses as much as digits as its factorization.

211301031103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77430736.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 211301031103 its reverse (301130103112), we get a palindrome (512431134215).

The spelling of 211301031103 in words is "two hundred eleven billion, three hundred one million, thirty-one thousand, one hundred three".