211231330101203 has 4 divisors (see below), whose sum is σ = 218515169070240. Its totient is φ = 203947491132168.

The previous prime is 211231330101157. The next prime is 211231330101217. The reversal of 211231330101203 is 302101033132112.

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 211231330101203 - 2⁶ = 211231330101139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211231330101293) 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, 3641919484475 + ... + 3641919484532.

It is an arithmetic number, because the mean of its divisors is an integer number (54628792267560).

Almost surely, 2^{211231330101203} is an apocalyptic number.

211231330101203 is a deficient number, since it is larger than the sum of its proper divisors (7283838969037).

211231330101203 is an equidigital number, since it uses as much as digits as its factorization.

211231330101203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7283838969036.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 211231330101203 its reverse (302101033132112), we get a palindrome (513332363233315).

The spelling of 211231330101203 in words is "two hundred eleven trillion, two hundred thirty-one billion, three hundred thirty million, one hundred one thousand, two hundred three".