231303344101 has 4 divisors (see below), whose sum is σ = 232322301792. Its totient is φ = 230284386412.

The previous prime is 231303344089. The next prime is 231303344159. The reversal of 231303344101 is 101443303132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231303344101 - 2⁹ = 231303343589 is a prime.

It is a super-2 number, since 2×231303344101² (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 (231303344191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509478505 + ... + 509478958.

It is an arithmetic number, because the mean of its divisors is an integer number (58080575448).

Almost surely, 2^231303344101 is an apocalyptic number.

It is an amenable number.

231303344101 is a deficient number, since it is larger than the sum of its proper divisors (1018957691).

231303344101 is a wasteful number, since it uses less digits than its factorization.

231303344101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018957690.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 231303344101 its reverse (101443303132), we get a palindrome (332746647233).

The spelling of 231303344101 in words is "two hundred thirty-one billion, three hundred three million, three hundred forty-four thousand, one hundred one".