1204134423043 has 4 divisors (see below), whose sum is σ = 1204581560688. Its totient is φ = 1203687285400.

The previous prime is 1204134423017. The next prime is 1204134423061. The reversal of 1204134423043 is 3403244314021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1204134423043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1204134422996 and 1204134423014.

It is not an unprimeable number, because it can be changed into a prime (1204134423013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223564783 + ... + 223570168.

It is an arithmetic number, because the mean of its divisors is an integer number (301145390172).

Almost surely, 2^{1204134423043} is an apocalyptic number.

1204134423043 is a deficient number, since it is larger than the sum of its proper divisors (447137645).

1204134423043 is an equidigital number, since it uses as much as digits as its factorization.

1204134423043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447137644.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 1204134423043 its reverse (3403244314021), we get a palindrome (4607378737064).

The spelling of 1204134423043 in words is "one trillion, two hundred four billion, one hundred thirty-four million, four hundred twenty-three thousand, forty-three".