1203320212111 has 4 divisors (see below), whose sum is σ = 1204417132272. Its totient is φ = 1202223291952.

The previous prime is 1203320212109. The next prime is 1203320212187. The reversal of 1203320212111 is 1112120233021.

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 1203320212111 - 2¹ = 1203320212109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203320212811) 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, 548458435 + ... + 548460628.

It is an arithmetic number, because the mean of its divisors is an integer number (301104283068).

Almost surely, 2^{1203320212111} is an apocalyptic number.

1203320212111 is a deficient number, since it is larger than the sum of its proper divisors (1096920161).

1203320212111 is a wasteful number, since it uses less digits than its factorization.

1203320212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096920160.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1203320212111 its reverse (1112120233021), we get a palindrome (2315440445132).

The spelling of 1203320212111 in words is "one trillion, two hundred three billion, three hundred twenty million, two hundred twelve thousand, one hundred eleven".