1230203312211 has 4 divisors (see below), whose sum is σ = 1640271082952. Its totient is φ = 820135541472.

The previous prime is 1230203312119. The next prime is 1230203312243. The reversal of 1230203312211 is 1122133020321.

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

It is not a de Polignac number, because 1230203312211 - 2²¹ = 1230201215059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230203322211) 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, 205033885366 + ... + 205033885371.

It is an arithmetic number, because the mean of its divisors is an integer number (410067770738).

Almost surely, 2^{1230203312211} is an apocalyptic number.

1230203312211 is a deficient number, since it is larger than the sum of its proper divisors (410067770741).

1230203312211 is an equidigital number, since it uses as much as digits as its factorization.

1230203312211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410067770740.

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

Adding to 1230203312211 its reverse (1122133020321), we get a palindrome (2352336332532).

The spelling of 1230203312211 in words is "one trillion, two hundred thirty billion, two hundred three million, three hundred twelve thousand, two hundred eleven".