231321320014 has 16 divisors (see below), whose sum is σ = 347534490240. Its totient is φ = 115476633720.

The previous prime is 231321320003. The next prime is 231321320033. The reversal of 231321320014 is 410023123132.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 3305317 + ... + 3374575.

It is an arithmetic number, because the mean of its divisors is an integer number (21720905640).

Almost surely, 2^231321320014 is an apocalyptic number.

231321320014 is a deficient number, since it is larger than the sum of its proper divisors (116213170226).

231321320014 is a wasteful number, since it uses less digits than its factorization.

231321320014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71895.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 231321320014 its reverse (410023123132), we get a palindrome (641344443146).

The spelling of 231321320014 in words is "two hundred thirty-one billion, three hundred twenty-one million, three hundred twenty thousand, fourteen".