320620416331 has 4 divisors (see below), whose sum is σ = 320622145912. Its totient is φ = 320618686752.

The previous prime is 320620416317. The next prime is 320620416343. The reversal of 320620416331 is 133614026023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133614026023 = 4243 ⋅31490461.

It is a cyclic number.

It is not a de Polignac number, because 320620416331 - 2⁷ = 320620416203 is a prime.

It is a super-2 number, since 2×320620416331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320620416293 and 320620416302.

It is not an unprimeable number, because it can be changed into a prime (320620416371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548061 + ... + 970366.

It is an arithmetic number, because the mean of its divisors is an integer number (80155536478).

Almost surely, 2^320620416331 is an apocalyptic number.

320620416331 is a deficient number, since it is larger than the sum of its proper divisors (1729581).

320620416331 is a wasteful number, since it uses less digits than its factorization.

320620416331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1729580.

The product of its (nonzero) digits is 15552, while the sum is 31.

The spelling of 320620416331 in words is "three hundred twenty billion, six hundred twenty million, four hundred sixteen thousand, three hundred thirty-one".