231330240240 has 160 divisors (see below), whose sum is σ = 782735616000. Its totient is φ = 56050037760.

The previous prime is 231330240199. The next prime is 231330240241. The reversal of 231330240240 is 42042033132.

231330240240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×231330240240² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 231330240240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231330240241) 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, 5122881 + ... + 5167839.

It is an arithmetic number, because the mean of its divisors is an integer number (4892097600).

Almost surely, 2^231330240240 is an apocalyptic number.

231330240240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231330240240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (391367808000).

231330240240 is an abundant number, since it is smaller than the sum of its proper divisors (551405375760).

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

231330240240 is a wasteful number, since it uses less digits than its factorization.

231330240240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46935 (or 46929 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 231330240240 its reverse (42042033132), we get a palindrome (273372273372).

The spelling of 231330240240 in words is "two hundred thirty-one billion, three hundred thirty million, two hundred forty thousand, two hundred forty".