11211011201203 has 16 divisors (see below), whose sum is σ = 12353732709120. Its totient is φ = 10088919468000.

The previous prime is 11211011201171. The next prime is 11211011201219. The reversal of 11211011201203 is 30210211011211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11211011201203 - 2⁵ = 11211011201171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11211011201903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4623226 + ... + 6617872.

It is an arithmetic number, because the mean of its divisors is an integer number (772108294320).

Almost surely, 2^{11211011201203} is an apocalyptic number.

11211011201203 is a deficient number, since it is larger than the sum of its proper divisors (1142721507917).

11211011201203 is a wasteful number, since it uses less digits than its factorization.

11211011201203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999818.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 11211011201203 its reverse (30210211011211), we get a palindrome (41421222212414).

The spelling of 11211011201203 in words is "eleven trillion, two hundred eleven billion, eleven million, two hundred one thousand, two hundred three".