1204354011243 has 8 divisors (see below), whose sum is σ = 1605858443728. Its totient is φ = 802876126464.

The previous prime is 1204354011197. The next prime is 1204354011247. The reversal of 1204354011243 is 3421104534021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1204354011243 - 2¹² = 1204354007147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1204354011243.

It is not an unprimeable number, because it can be changed into a prime (1204354011247) 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 7 ways as a sum of consecutive naturals, for example, 6530830 + ... + 6712707.

It is an arithmetic number, because the mean of its divisors is an integer number (200732305466).

Almost surely, 2^{1204354011243} is an apocalyptic number.

1204354011243 is a deficient number, since it is larger than the sum of its proper divisors (401504432485).

1204354011243 is a wasteful number, since it uses less digits than its factorization.

1204354011243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13273853.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 1204354011243 its reverse (3421104534021), we get a palindrome (4625458545264).

The spelling of 1204354011243 in words is "one trillion, two hundred four billion, three hundred fifty-four million, eleven thousand, two hundred forty-three".