320254513340 has 24 divisors (see below), whose sum is σ = 688174816560. Its totient is φ = 125122693248.

The previous prime is 320254513333. The next prime is 320254513351. The reversal of 320254513340 is 43315452023.

It is a junction number, because it is equal to n+sod(n) for n = 320254513297 and 320254513306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186193625 + ... + 186195344.

It is an arithmetic number, because the mean of its divisors is an integer number (28673950690).

Almost surely, 2^320254513340 is an apocalyptic number.

It is an amenable number.

320254513340 is an abundant number, since it is smaller than the sum of its proper divisors (367920303220).

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

320254513340 is a wasteful number, since it uses less digits than its factorization.

320254513340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372389021 (or 372389019 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 320254513340 its reverse (43315452023), we get a palindrome (363569965363).

The spelling of 320254513340 in words is "three hundred twenty billion, two hundred fifty-four million, five hundred thirteen thousand, three hundred forty".