320342505031 has 8 divisors (see below), whose sum is σ = 322457859360. Its totient is φ = 318229497888.

The previous prime is 320342505029. The next prime is 320342505037. The reversal of 320342505031 is 130505243023.

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 320342505031 - 2¹ = 320342505029 is a prime.

It is a super-2 number, since 2×320342505031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320342505037) 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, 312516 + ... + 859273.

It is an arithmetic number, because the mean of its divisors is an integer number (40307232420).

Almost surely, 2^320342505031 is an apocalyptic number.

320342505031 is a deficient number, since it is larger than the sum of its proper divisors (2115354329).

320342505031 is a wasteful number, since it uses less digits than its factorization.

320342505031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173593.

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 320342505031 its reverse (130505243023), we get a palindrome (450847748054).

The spelling of 320342505031 in words is "three hundred twenty billion, three hundred forty-two million, five hundred five thousand, thirty-one".