130431012540 has 96 divisors (see below), whose sum is σ = 368040153600. Its totient is φ = 34512288000.

The previous prime is 130431012521. The next prime is 130431012541. The reversal of 130431012540 is 45210134031.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 130431012540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130431012541) 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, 8517811 + ... + 8533109.

It is an arithmetic number, because the mean of its divisors is an integer number (3833751600).

Almost surely, 2^130431012540 is an apocalyptic number.

130431012540 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 130431012540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184020076800).

130431012540 is an abundant number, since it is smaller than the sum of its proper divisors (237609141060).

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

130431012540 is a wasteful number, since it uses less digits than its factorization.

130431012540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16403 (or 16401 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 130431012540 its reverse (45210134031), we get a palindrome (175641146571).

The spelling of 130431012540 in words is "one hundred thirty billion, four hundred thirty-one million, twelve thousand, five hundred forty".