201231301103211 has 4 divisors (see below), whose sum is σ = 268308401470952. Its totient is φ = 134154200735472.

The previous prime is 201231301103171. The next prime is 201231301103219. The reversal of 201231301103211 is 112301103132102.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 201231301103211 - 2⁴⁶ = 130862556925547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201231301103219) 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, 33538550183866 + ... + 33538550183871.

It is an arithmetic number, because the mean of its divisors is an integer number (67077100367738).

Almost surely, 2^{201231301103211} is an apocalyptic number.

201231301103211 is a deficient number, since it is larger than the sum of its proper divisors (67077100367741).

201231301103211 is an equidigital number, since it uses as much as digits as its factorization.

201231301103211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67077100367740.

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

Adding to 201231301103211 its reverse (112301103132102), we get a palindrome (313532404235313).

The spelling of 201231301103211 in words is "two hundred one trillion, two hundred thirty-one billion, three hundred one million, one hundred three thousand, two hundred eleven".