1204134202123 has 2 divisors, whose sum is σ = 1204134202124. Its totient is φ = 1204134202122.

The previous prime is 1204134202081. The next prime is 1204134202129. The reversal of 1204134202123 is 3212024314021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1204134202123 is a prime.

It is not a weakly prime, because it can be changed into another prime (1204134202129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602067101061 + 602067101062.

It is an arithmetic number, because the mean of its divisors is an integer number (602067101062).

Almost surely, 2^{1204134202123} is an apocalyptic number.

1204134202123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204134202123 is an equidigital number, since it uses as much as digits as its factorization.

1204134202123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1204134202123 its reverse (3212024314021), we get a palindrome (4416158516144).

The spelling of 1204134202123 in words is "one trillion, two hundred four billion, one hundred thirty-four million, two hundred two thousand, one hundred twenty-three".