130231440240 has 160 divisors (see below), whose sum is σ = 440559302400. Its totient is φ = 31561205760.

The previous prime is 130231440239. The next prime is 130231440247. The reversal of 130231440240 is 42044132031.

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 130231440240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130231440247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11449276 + ... + 11460644.

It is an arithmetic number, because the mean of its divisors is an integer number (2753495640).

Almost surely, 2^130231440240 is an apocalyptic number.

130231440240 is a gapful number since it is divisible by the number (10) 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 130231440240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220279651200).

130231440240 is an abundant number, since it is smaller than the sum of its proper divisors (310327862160).

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

130231440240 is a wasteful number, since it uses less digits than its factorization.

130231440240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15735 (or 15729 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 130231440240 its reverse (42044132031), we get a palindrome (172275572271).

The spelling of 130231440240 in words is "one hundred thirty billion, two hundred thirty-one million, four hundred forty thousand, two hundred forty".