320437135100813 has 8 divisors (see below), whose sum is σ = 337339930845120. Its totient is φ = 303538107693600.

The previous prime is 320437135100809. The next prime is 320437135100923. The reversal of 320437135100813 is 318001531734023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320437135100813 - 2² = 320437135100809 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320437137100813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 941909720 + ... + 942249857.

It is an arithmetic number, because the mean of its divisors is an integer number (42167491355640).

Almost surely, 2^{320437135100813} is an apocalyptic number.

It is an amenable number.

320437135100813 is a deficient number, since it is larger than the sum of its proper divisors (16902795744307).

320437135100813 is a wasteful number, since it uses less digits than its factorization.

320437135100813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1884168547.

The product of its (nonzero) digits is 181440, while the sum is 41.

Adding to 320437135100813 its reverse (318001531734023), we get a palindrome (638438666834836).

The spelling of 320437135100813 in words is "three hundred twenty trillion, four hundred thirty-seven billion, one hundred thirty-five million, one hundred thousand, eight hundred thirteen".