1304111123 has 16 divisors (see below), whose sum is σ = 1586926080. Its totient is φ = 1046161536.

The previous prime is 1304111087. The next prime is 1304111129. The reversal of 1304111123 is 3211114031.

It is not a de Polignac number, because 1304111123 - 2¹² = 1304107027 is a prime.

It is a super-2 number, since 2×1304111123² = 3401411642264642258, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1304111129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9311 + ... + 51912.

It is an arithmetic number, because the mean of its divisors is an integer number (99182880).

Almost surely, 2^1304111123 is an apocalyptic number.

1304111123 is a deficient number, since it is larger than the sum of its proper divisors (282814957).

1304111123 is a wasteful number, since it uses less digits than its factorization.

1304111123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61426.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1304111123 is about 36112.4787711949. The cubic root of 1304111123 is about 1092.5421468903.

Adding to 1304111123 its reverse (3211114031), we get a palindrome (4515225154).

The spelling of 1304111123 in words is "one billion, three hundred four million, one hundred eleven thousand, one hundred twenty-three".