320223352501 has 8 divisors (see below), whose sum is σ = 356747501880. Its totient is φ = 285398000832.

The previous prime is 320223352489. The next prime is 320223352517. The reversal of 320223352501 is 105253322023.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 96540704100 + 223682648401 = 310710^2 + 472951^2 .

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 320223352501 - 2¹¹ = 320223350453 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 320223352501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320223352601) 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, 424699030 + ... + 424699783.

It is an arithmetic number, because the mean of its divisors is an integer number (44593437735).

Almost surely, 2^320223352501 is an apocalyptic number.

It is an amenable number.

320223352501 is a deficient number, since it is larger than the sum of its proper divisors (36524149379).

320223352501 is a wasteful number, since it uses less digits than its factorization.

320223352501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849398855.

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

Adding to 320223352501 its reverse (105253322023), we get a palindrome (425476674524).

The spelling of 320223352501 in words is "three hundred twenty billion, two hundred twenty-three million, three hundred fifty-two thousand, five hundred one".