1000320240255 has 16 divisors (see below), whose sum is σ = 1829157010944. Its totient is φ = 457289252640.

The previous prime is 1000320240233. The next prime is 1000320240259. The reversal of 1000320240255 is 5520420230001.

It is not a de Polignac number, because 1000320240255 - 2¹¹ = 1000320238207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000320240259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4763429611 + ... + 4763429820.

It is an arithmetic number, because the mean of its divisors is an integer number (114322313184).

Almost surely, 2^{1000320240255} is an apocalyptic number.

1000320240255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1000320240255 is a deficient number, since it is larger than the sum of its proper divisors (828836770689).

1000320240255 is an equidigital number, since it uses as much as digits as its factorization.

1000320240255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9526859446.

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 1000320240255 its reverse (5520420230001), we get a palindrome (6520740470256).

The spelling of 1000320240255 in words is "one trillion, three hundred twenty million, two hundred forty thousand, two hundred fifty-five".