320043464623 has 4 divisors (see below), whose sum is σ = 320307310408. Its totient is φ = 319779618840.

The previous prime is 320043464603. The next prime is 320043464641. The reversal of 320043464623 is 326464340023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 326464340023 = 1699 ⋅192150877.

It is a cyclic number.

It is not a de Polignac number, because 320043464623 - 2⁵ = 320043464591 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 (320043464603) 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, 131921073 + ... + 131923498.

It is an arithmetic number, because the mean of its divisors is an integer number (80076827602).

Almost surely, 2^320043464623 is an apocalyptic number.

320043464623 is a deficient number, since it is larger than the sum of its proper divisors (263845785).

320043464623 is a wasteful number, since it uses less digits than its factorization.

320043464623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263845784.

The product of its (nonzero) digits is 248832, while the sum is 37.

The spelling of 320043464623 in words is "three hundred twenty billion, forty-three million, four hundred sixty-four thousand, six hundred twenty-three".