231031122330103 has 4 divisors (see below), whose sum is σ = 233955566916640. Its totient is φ = 228106677743568.

The previous prime is 231031122330091. The next prime is 231031122330119. The reversal of 231031122330103 is 301033221130132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231031122330103 - 2²¹ = 231031120232951 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 (231031122333103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1462222293150 + ... + 1462222293307.

It is an arithmetic number, because the mean of its divisors is an integer number (58488891729160).

Almost surely, 2^{231031122330103} is an apocalyptic number.

231031122330103 is a deficient number, since it is larger than the sum of its proper divisors (2924444586537).

231031122330103 is an equidigital number, since it uses as much as digits as its factorization.

231031122330103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2924444586536.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 231031122330103 its reverse (301033221130132), we get a palindrome (532064343460235).

The spelling of 231031122330103 in words is "two hundred thirty-one trillion, thirty-one billion, one hundred twenty-two million, three hundred thirty thousand, one hundred three".