231103515344 has 160 divisors (see below), whose sum is σ = 551147224320. Its totient is φ = 92712001536.

The previous prime is 231103515343. The next prime is 231103515371. The reversal of 231103515344 is 443515301132.

It is a self number, because there is not a number n which added to its sum of digits gives 231103515344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231103515343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2309519 + ... + 2407505.

It is an arithmetic number, because the mean of its divisors is an integer number (3444670152).

Almost surely, 2^231103515344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231103515344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275573612160).

231103515344 is an abundant number, since it is smaller than the sum of its proper divisors (320043708976).

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

231103515344 is a wasteful number, since it uses less digits than its factorization.

231103515344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98077 (or 98071 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 231103515344 its reverse (443515301132), we get a palindrome (674618816476).

The spelling of 231103515344 in words is "two hundred thirty-one billion, one hundred three million, five hundred fifteen thousand, three hundred forty-four".