1103031220211 has 24 divisors (see below), whose sum is σ = 1134018607680. Its totient is φ = 1072681968384.

The previous prime is 1103031220201. The next prime is 1103031220271. The reversal of 1103031220211 is 1120221303011.

It is not a de Polignac number, because 1103031220211 - 2¹⁸ = 1103030958067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1103031220211.

It is not an unprimeable number, because it can be changed into a prime (1103031220201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162374231 + ... + 162381023.

It is an arithmetic number, because the mean of its divisors is an integer number (47250775320).

Almost surely, 2^{1103031220211} is an apocalyptic number.

1103031220211 is a deficient number, since it is larger than the sum of its proper divisors (30987387469).

1103031220211 is an equidigital number, since it uses as much as digits as its factorization.

1103031220211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7263 (or 7154 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1103031220211 its reverse (1120221303011), we get a palindrome (2223252523222).

The spelling of 1103031220211 in words is "one trillion, one hundred three billion, thirty-one million, two hundred twenty thousand, two hundred eleven".