1203313211211 has 4 divisors (see below), whose sum is σ = 1604417614952. Its totient is φ = 802208807472.

The previous prime is 1203313211201. The next prime is 1203313211281. The reversal of 1203313211211 is 1121123133021.

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

It is not a de Polignac number, because 1203313211211 - 2¹³ = 1203313203019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1203313211201) 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, 200552201866 + ... + 200552201871.

It is an arithmetic number, because the mean of its divisors is an integer number (401104403738).

Almost surely, 2^{1203313211211} is an apocalyptic number.

1203313211211 is a deficient number, since it is larger than the sum of its proper divisors (401104403741).

1203313211211 is an equidigital number, since it uses as much as digits as its factorization.

1203313211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401104403740.

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

Adding to 1203313211211 its reverse (1121123133021), we get a palindrome (2324436344232).

The spelling of 1203313211211 in words is "one trillion, two hundred three billion, three hundred thirteen million, two hundred eleven thousand, two hundred eleven".