1304032123 has 4 divisors (see below), whose sum is σ = 1304209368. Its totient is φ = 1303854880.

The previous prime is 1304032043. The next prime is 1304032129. The reversal of 1304032123 is 3212304031.

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

It is a cyclic number.

It is not a de Polignac number, because 1304032123 - 2²¹ = 1301934971 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 1304032123.

It is not an unprimeable number, because it can be changed into a prime (1304032129) 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, 77086 + ... + 92467.

It is an arithmetic number, because the mean of its divisors is an integer number (326052342).

Almost surely, 2^1304032123 is an apocalyptic number.

1304032123 is a deficient number, since it is larger than the sum of its proper divisors (177245).

1304032123 is an equidigital number, since it uses as much as digits as its factorization.

1304032123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177244.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1304032123 is about 36111.3849499019. The cubic root of 1304032123 is about 1092.5200852293.

Adding to 1304032123 its reverse (3212304031), we get a palindrome (4516336154).

The spelling of 1304032123 in words is "one billion, three hundred four million, thirty-two thousand, one hundred twenty-three".