1303423310205 has 56 divisors (see below), whose sum is σ = 2346370975872. Its totient is φ = 694779138144.

The previous prime is 1303423310183. The next prime is 1303423310209. The reversal of 1303423310205 is 5020133243031.

1303423310205 is a `hidden beast` number, since 1 + 3 + 0 + 3 + 423 + 31 + 0 + 205 = 666.

It is not a de Polignac number, because 1303423310205 - 2¹² = 1303423306109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303423310209) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 6635512 + ... + 6829118.

It is an arithmetic number, because the mean of its divisors is an integer number (41899481712).

Almost surely, 2^{1303423310205} is an apocalyptic number.

1303423310205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1303423310205 is a deficient number, since it is larger than the sum of its proper divisors (1042947665667).

1303423310205 is an equidigital number, since it uses as much as digits as its factorization.

1303423310205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195477 (or 195462 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

Adding to 1303423310205 its reverse (5020133243031), we get a palindrome (6323556553236).

The spelling of 1303423310205 in words is "one trillion, three hundred three billion, four hundred twenty-three million, three hundred ten thousand, two hundred five".