320223500413 has 4 divisors (see below), whose sum is σ = 321621856540. Its totient is φ = 318825144288.

The previous prime is 320223500327. The next prime is 320223500461. The reversal of 320223500413 is 314005322023.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 228219264729 + 92004235684 = 477723^2 + 303322^2 .

It is a cyclic number.

It is not a de Polignac number, because 320223500413 - 2¹⁷ = 320223369341 is a prime.

It is a super-2 number, since 2×320223500413² (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 (320223507413) 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, 699177720 + ... + 699178177.

It is an arithmetic number, because the mean of its divisors is an integer number (80405464135).

Almost surely, 2^320223500413 is an apocalyptic number.

It is an amenable number.

320223500413 is a deficient number, since it is larger than the sum of its proper divisors (1398356127).

320223500413 is a wasteful number, since it uses less digits than its factorization.

320223500413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398356126.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 320223500413 its reverse (314005322023), we get a palindrome (634228822436).

The spelling of 320223500413 in words is "three hundred twenty billion, two hundred twenty-three million, five hundred thousand, four hundred thirteen".