1230733019205 has 48 divisors (see below), whose sum is σ = 2212511281344. Its totient is φ = 656322497280.

The previous prime is 1230733019189. The next prime is 1230733019207. The reversal of 1230733019205 is 5029103370321.

It is a happy number.

1230733019205 is a `hidden beast` number, since 1 + 2 + 307 + 330 + 19 + 2 + 0 + 5 = 666.

It is not a de Polignac number, because 1230733019205 - 2⁴ = 1230733019189 is a prime.

It is a super-2 number, since 2×1230733019205² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1230733019205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230733019207) 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 47 ways as a sum of consecutive naturals, for example, 12912925 + ... + 13007885.

It is an arithmetic number, because the mean of its divisors is an integer number (46093985028).

Almost surely, 2^{1230733019205} is an apocalyptic number.

1230733019205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1230733019205 is a deficient number, since it is larger than the sum of its proper divisors (981778262139).

1230733019205 is an equidigital number, since it uses as much as digits as its factorization.

1230733019205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105648 (or 105636 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 36.

Adding to 1230733019205 its reverse (5029103370321), we get a palindrome (6259836389526).

The spelling of 1230733019205 in words is "one trillion, two hundred thirty billion, seven hundred thirty-three million, nineteen thousand, two hundred five".