211312223203 has 16 divisors (see below), whose sum is σ = 216328320000. Its totient is φ = 206318362432.

The previous prime is 211312223173. The next prime is 211312223231. The reversal of 211312223203 is 302322213112.

It is a cyclic number.

It is not a de Polignac number, because 211312223203 - 2²¹ = 211310126051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211312223303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65848263 + ... + 65851471.

It is an arithmetic number, because the mean of its divisors is an integer number (13520520000).

Almost surely, 2^211312223203 is an apocalyptic number.

211312223203 is a deficient number, since it is larger than the sum of its proper divisors (5016096797).

211312223203 is a wasteful number, since it uses less digits than its factorization.

211312223203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6194.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 211312223203 its reverse (302322213112), we get a palindrome (513634436315).

The spelling of 211312223203 in words is "two hundred eleven billion, three hundred twelve million, two hundred twenty-three thousand, two hundred three".