1002320355 has 16 divisors (see below), whose sum is σ = 1637835264. Its totient is φ = 523196640.

The previous prime is 1002320353. The next prime is 1002320369. The reversal of 1002320355 is 5530232001.

It is not a de Polignac number, because 1002320355 - 2¹ = 1002320353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1002320353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 710161 + ... + 711570.

It is an arithmetic number, because the mean of its divisors is an integer number (102364704).

Almost surely, 2^1002320355 is an apocalyptic number.

1002320355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1002320355 is a deficient number, since it is larger than the sum of its proper divisors (635514909).

1002320355 is a wasteful number, since it uses less digits than its factorization.

1002320355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421786.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 1002320355 is about 31659.4433779244. The cubic root of 1002320355 is about 1000.7728542092.

Adding to 1002320355 its reverse (5530232001), we get a palindrome (6532552356).

The spelling of 1002320355 in words is "one billion, two million, three hundred twenty thousand, three hundred fifty-five".