1204040134423 has 8 divisors (see below), whose sum is σ = 1376053540640. Its totient is φ = 1032028646400.

The previous prime is 1204040134421. The next prime is 1204040134439. The reversal of 1204040134423 is 3244310404021.

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

It is a cyclic number.

It is not a de Polignac number, because 1204040134423 - 2¹ = 1204040134421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1204040134391 and 1204040134400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204040134421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1311463 + ... + 2031751.

It is an arithmetic number, because the mean of its divisors is an integer number (172006692580).

Almost surely, 2^{1204040134423} is an apocalyptic number.

1204040134423 is a deficient number, since it is larger than the sum of its proper divisors (172013406217).

1204040134423 is an equidigital number, since it uses as much as digits as its factorization.

1204040134423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959097.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 1204040134423 its reverse (3244310404021), we get a palindrome (4448350538444).

The spelling of 1204040134423 in words is "one trillion, two hundred four billion, forty million, one hundred thirty-four thousand, four hundred twenty-three".