111203212011 has 32 divisors (see below), whose sum is σ = 152231954688. Its totient is φ = 72185118720.

The previous prime is 111203211991. The next prime is 111203212019. The reversal of 111203212011 is 110212302111.

It is not a de Polignac number, because 111203212011 - 2⁶ = 111203211947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111203212019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6758851 + ... + 6775283.

It is an arithmetic number, because the mean of its divisors is an integer number (4757248584).

Almost surely, 2^111203212011 is an apocalyptic number.

111203212011 is a deficient number, since it is larger than the sum of its proper divisors (41028742677).

111203212011 is a wasteful number, since it uses less digits than its factorization.

111203212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16891.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 111203212011 its reverse (110212302111), we get a palindrome (221415514122).

The spelling of 111203212011 in words is "one hundred eleven billion, two hundred three million, two hundred twelve thousand, eleven".