231242420105 has 16 divisors (see below), whose sum is σ = 281431822464. Its totient is φ = 182369174400.

The previous prime is 231242420093. The next prime is 231242420111. The reversal of 231242420105 is 501024242132.

It is not a de Polignac number, because 231242420105 - 2⁶ = 231242420041 is a prime.

It is a super-3 number, since 3×231242420105³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 583580 + ... + 896130.

It is an arithmetic number, because the mean of its divisors is an integer number (17589488904).

Almost surely, 2^231242420105 is an apocalyptic number.

It is an amenable number.

231242420105 is a deficient number, since it is larger than the sum of its proper divisors (50189402359).

231242420105 is a wasteful number, since it uses less digits than its factorization.

231242420105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314656.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 231242420105 its reverse (501024242132), we get a palindrome (732266662237).

The spelling of 231242420105 in words is "two hundred thirty-one billion, two hundred forty-two million, four hundred twenty thousand, one hundred five".