11211011223203 has 16 divisors (see below), whose sum is σ = 12245919803520. Its totient is φ = 10178726500800.

The previous prime is 11211011223197. The next prime is 11211011223253. The reversal of 11211011223203 is 30232211011211.

It is not a de Polignac number, because 11211011223203 - 2⁸ = 11211011222947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11211011223253) 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, 82714976 + ... + 82850402.

It is an arithmetic number, because the mean of its divisors is an integer number (765369987720).

Almost surely, 2^{11211011223203} is an apocalyptic number.

11211011223203 is a deficient number, since it is larger than the sum of its proper divisors (1034908580317).

11211011223203 is a wasteful number, since it uses less digits than its factorization.

11211011223203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145058.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 11211011223203 its reverse (30232211011211), we get a palindrome (41443222234414).

The spelling of 11211011223203 in words is "eleven trillion, two hundred eleven billion, eleven million, two hundred twenty-three thousand, two hundred three".