231012221103 has 8 divisors (see below), whose sum is σ = 342240327600. Its totient is φ = 154008147384.

The previous prime is 231012221093. The next prime is 231012221117. The reversal of 231012221103 is 301122210132.

It is not a de Polignac number, because 231012221103 - 2⁴ = 231012221087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231012221203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4278004068 + ... + 4278004121.

It is an arithmetic number, because the mean of its divisors is an integer number (42780040950).

Almost surely, 2^231012221103 is an apocalyptic number.

231012221103 is a deficient number, since it is larger than the sum of its proper divisors (111228106497).

231012221103 is an equidigital number, since it uses as much as digits as its factorization.

231012221103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8556008198 (or 8556008192 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 231012221103 its reverse (301122210132), we get a palindrome (532134431235).

The spelling of 231012221103 in words is "two hundred thirty-one billion, twelve million, two hundred twenty-one thousand, one hundred three".