1204043023 has 4 divisors (see below), whose sum is σ = 1233409968. Its totient is φ = 1174676080.

The previous prime is 1204042999. The next prime is 1204043047. The reversal of 1204043023 is 3203404021.

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

It is an interprime number because it is at equal distance from previous prime (1204042999) and next prime (1204043047).

It is a cyclic number.

It is not a de Polignac number, because 1204043023 - 2⁵ = 1204042991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204043723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14683411 + ... + 14683492.

It is an arithmetic number, because the mean of its divisors is an integer number (308352492).

Almost surely, 2^1204043023 is an apocalyptic number.

1204043023 is a deficient number, since it is larger than the sum of its proper divisors (29366945).

1204043023 is an equidigital number, since it uses as much as digits as its factorization.

1204043023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29366944.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1204043023 is about 34699.3230913803. The cubic root of 1204043023 is about 1063.8506627873.

Adding to 1204043023 its reverse (3203404021), we get a palindrome (4407447044).

The spelling of 1204043023 in words is "one billion, two hundred four million, forty-three thousand, twenty-three".