320235040000 has 90 divisors (see below), whose sum is σ = 798768663770. Its totient is φ = 128093952000.

The previous prime is 320235039967. The next prime is 320235040033. The reversal of 320235040000 is 40532023.

It is an interprime number because it is at equal distance from previous prime (320235039967) and next prime (320235040033).

It can be written as a sum of positive squares in 5 ways, for example, as 34275338496 + 285959701504 = 185136^2 + 534752^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 320235040000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 840735 + ... + 1160734.

Almost surely, 2^320235040000 is an apocalyptic number.

It is an amenable number.

320235040000 is an abundant number, since it is smaller than the sum of its proper divisors (478533623770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320235040000 is an frugal number, since it uses more digits than its factorization.

320235040000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001505 (or 2001476 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

Adding to 320235040000 its reverse (40532023), we get a palindrome (320275572023).

The spelling of 320235040000 in words is "three hundred twenty billion, two hundred thirty-five million, forty thousand".