131630514621540 has 144 divisors (see below), whose sum is σ = 405320700188544. Its totient is φ = 31894413027840.

The previous prime is 131630514621533. The next prime is 131630514621547. The reversal of 131630514621540 is 45126415036131.

131630514621540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (131630514621533) and next prime (131630514621547).

It is a junction number, because it is equal to n+sod(n) for n = 131630514621492 and 131630514621501.

It is not an unprimeable number, because it can be changed into a prime (131630514621547) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9920529 + ... + 19017831.

Almost surely, 2^{131630514621540} is an apocalyptic number.

131630514621540 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 131630514621540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202660350094272).

131630514621540 is an abundant number, since it is smaller than the sum of its proper divisors (273690185567004).

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

131630514621540 is a wasteful number, since it uses less digits than its factorization.

131630514621540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9099330 (or 9099317 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

Adding to 131630514621540 its reverse (45126415036131), we get a palindrome (176756929657671).

The spelling of 131630514621540 in words is "one hundred thirty-one trillion, six hundred thirty billion, five hundred fourteen million, six hundred twenty-one thousand, five hundred forty".