231315214044 has 24 divisors (see below), whose sum is σ = 545079418128. Its totient is φ = 76341654400.

The previous prime is 231315213979. The next prime is 231315214057. The reversal of 231315214044 is 440412513132.

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, 95425857 + ... + 95428280.

It is an arithmetic number, because the mean of its divisors is an integer number (22711642422).

Almost surely, 2^231315214044 is an apocalyptic number.

It is an amenable number.

231315214044 is an abundant number, since it is smaller than the sum of its proper divisors (313764204084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231315214044 is a wasteful number, since it uses less digits than its factorization.

231315214044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190854245 (or 190854243 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 231315214044 its reverse (440412513132), we get a palindrome (671727727176).

The spelling of 231315214044 in words is "two hundred thirty-one billion, three hundred fifteen million, two hundred fourteen thousand, forty-four".