11203203020311 has 16 divisors (see below), whose sum is σ = 11261560412160. Its totient is φ = 11145037764960.

The previous prime is 11203203020309. The next prime is 11203203020329. The reversal of 11203203020311 is 11302030230211.

It is a cyclic number.

It is not a de Polignac number, because 11203203020311 - 2¹ = 11203203020309 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 (11203203020371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224618706 + ... + 224668576.

It is an arithmetic number, because the mean of its divisors is an integer number (703847525760).

Almost surely, 2^{11203203020311} is an apocalyptic number.

11203203020311 is a deficient number, since it is larger than the sum of its proper divisors (58357391849).

11203203020311 is an equidigital number, since it uses as much as digits as its factorization.

11203203020311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51774.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11203203020311 its reverse (11302030230211), we get a palindrome (22505233250522).

The spelling of 11203203020311 in words is "eleven trillion, two hundred three billion, two hundred three million, twenty thousand, three hundred eleven".