1230530543205 has 16 divisors (see below), whose sum is σ = 1968888363264. Its totient is φ = 656269791680.

The previous prime is 1230530543201. The next prime is 1230530543299. The reversal of 1230530543205 is 5023450350321.

It is not a de Polignac number, because 1230530543205 - 2² = 1230530543201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230530543201) 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, 25149 + ... + 1568978.

It is an arithmetic number, because the mean of its divisors is an integer number (123055522704).

Almost surely, 2^{1230530543205} is an apocalyptic number.

1230530543205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1230530543205 is a deficient number, since it is larger than the sum of its proper divisors (738357820059).

1230530543205 is a wasteful number, since it uses less digits than its factorization.

1230530543205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645596.

The product of its (nonzero) digits is 54000, while the sum is 33.

Adding to 1230530543205 its reverse (5023450350321), we get a palindrome (6253980893526).

The spelling of 1230530543205 in words is "one trillion, two hundred thirty billion, five hundred thirty million, five hundred forty-three thousand, two hundred five".