211031423103 has 8 divisors (see below), whose sum is σ = 283399513600. Its totient is φ = 139675474008.

The previous prime is 211031423101. The next prime is 211031423129. The reversal of 211031423103 is 301324130112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211031423103 - 2¹ = 211031423101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211031423103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211031423101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253034863 + ... + 253035696.

It is an arithmetic number, because the mean of its divisors is an integer number (35424939200).

Almost surely, 2^211031423103 is an apocalyptic number.

211031423103 is a deficient number, since it is larger than the sum of its proper divisors (72368090497).

211031423103 is a wasteful number, since it uses less digits than its factorization.

211031423103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506070701.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 211031423103 its reverse (301324130112), we get a palindrome (512355553215).

The spelling of 211031423103 in words is "two hundred eleven billion, thirty-one million, four hundred twenty-three thousand, one hundred three".