231321121103 has 8 divisors (see below), whose sum is σ = 234284947200. Its totient is φ = 228358187928.

The previous prime is 231321121099. The next prime is 231321121117. The reversal of 231321121103 is 301121123132.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231321121103 - 2² = 231321121099 is a prime.

It is a super-2 number, since 2×231321121103² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231321121153) 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, 306200 + ... + 745922.

It is an arithmetic number, because the mean of its divisors is an integer number (29285618400).

Almost surely, 2^231321121103 is an apocalyptic number.

231321121103 is a deficient number, since it is larger than the sum of its proper divisors (2963826097).

231321121103 is an equidigital number, since it uses as much as digits as its factorization.

231321121103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446461.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 231321121103 its reverse (301121123132), we get a palindrome (532442244235).

The spelling of 231321121103 in words is "two hundred thirty-one billion, three hundred twenty-one million, one hundred twenty-one thousand, one hundred three".