231103202011 has 16 divisors (see below), whose sum is σ = 252970760448. Its totient is φ = 209379008800.

The previous prime is 231103201991. The next prime is 231103202021. The reversal of 231103202011 is 110202301132.

It is a cyclic number.

It is not a de Polignac number, because 231103202011 - 2¹¹ = 231103199963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231103202021) 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, 24344976 + ... + 24354466.

It is an arithmetic number, because the mean of its divisors is an integer number (15810672528).

Almost surely, 2^231103202011 is an apocalyptic number.

231103202011 is a deficient number, since it is larger than the sum of its proper divisors (21867558437).

231103202011 is a wasteful number, since it uses less digits than its factorization.

231103202011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16802.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 231103202011 its reverse (110202301132), we get a palindrome (341305503143).

The spelling of 231103202011 in words is "two hundred thirty-one billion, one hundred three million, two hundred two thousand, eleven".