320203351125563 has 8 divisors (see below), whose sum is σ = 337062677936400. Its totient is φ = 303344676200448.

The previous prime is 320203351125557. The next prime is 320203351125587. The reversal of 320203351125563 is 365521153302023.

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 320203351125563 - 2⁶ = 320203351125499 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320203351125563.

It is not an unprimeable number, because it can be changed into a prime (320203351115563) 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, 161963018 + ... + 163928111.

It is an arithmetic number, because the mean of its divisors is an integer number (42132834742050).

Almost surely, 2^{320203351125563} is an apocalyptic number.

320203351125563 is a deficient number, since it is larger than the sum of its proper divisors (16859326810837).

320203351125563 is a wasteful number, since it uses less digits than its factorization.

320203351125563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325942861.

The product of its (nonzero) digits is 486000, while the sum is 41.

The spelling of 320203351125563 in words is "three hundred twenty trillion, two hundred three billion, three hundred fifty-one million, one hundred twenty-five thousand, five hundred sixty-three".