211111130023203 has 8 divisors (see below), whose sum is σ = 284872850152128. Its totient is φ = 139045081621544.

The previous prime is 211111130023169. The next prime is 211111130023247. The reversal of 211111130023203 is 302320031111112.

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

It is a cyclic number.

It is not a de Polignac number, because 211111130023203 - 2⁹ = 211111130022691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211111130023203.

It is not an unprimeable number, because it can be changed into a prime (211111130028203) 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, 423917931525 + ... + 423917932022.

It is an arithmetic number, because the mean of its divisors is an integer number (35609106269016).

Almost surely, 2^{211111130023203} is an apocalyptic number.

211111130023203 is a deficient number, since it is larger than the sum of its proper divisors (73761720128925).

211111130023203 is an equidigital number, since it uses as much as digits as its factorization.

211111130023203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847835863633.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 211111130023203 its reverse (302320031111112), we get a palindrome (513431161134315).

The spelling of 211111130023203 in words is "two hundred eleven trillion, one hundred eleven billion, one hundred thirty million, twenty-three thousand, two hundred three".