321430130131240 has 64 divisors (see below), whose sum is σ = 779482629192960. Its totient is φ = 118585483004160.

The previous prime is 321430130131237. The next prime is 321430130131247. The reversal of 321430130131240 is 42131031034123.

It is a junction number, because it is equal to n+sod(n) for n = 321430130131199 and 321430130131208.

It is not an unprimeable number, because it can be changed into a prime (321430130131247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250430094 + ... + 251710333.

It is an arithmetic number, because the mean of its divisors is an integer number (12179416081140).

Almost surely, 2^{321430130131240} is an apocalyptic number.

It is an amenable number.

321430130131240 is an abundant number, since it is smaller than the sum of its proper divisors (458052499061720).

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

321430130131240 is a wasteful number, since it uses less digits than its factorization.

321430130131240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502141682 (or 502141678 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 321430130131240 its reverse (42131031034123), we get a palindrome (363561161165363).

The spelling of 321430130131240 in words is "three hundred twenty-one trillion, four hundred thirty billion, one hundred thirty million, one hundred thirty-one thousand, two hundred forty".