231103021133 has 16 divisors (see below), whose sum is σ = 237944480256. Its totient is φ = 224358463680.

The previous prime is 231103021111. The next prime is 231103021139. The reversal of 231103021133 is 331120301132.

It is not a de Polignac number, because 231103021133 - 2²⁸ = 230834585677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231103021139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4870463 + ... + 4917683.

It is an arithmetic number, because the mean of its divisors is an integer number (14871530016).

Almost surely, 2^231103021133 is an apocalyptic number.

It is an amenable number.

231103021133 is a deficient number, since it is larger than the sum of its proper divisors (6841459123).

231103021133 is a wasteful number, since it uses less digits than its factorization.

231103021133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48244.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 231103021133 its reverse (331120301132), we get a palindrome (562223322265).

The spelling of 231103021133 in words is "two hundred thirty-one billion, one hundred three million, twenty-one thousand, one hundred thirty-three".