1304222123 has 4 divisors (see below), whose sum is σ = 1304467440. Its totient is φ = 1303976808.

The previous prime is 1304222093. The next prime is 1304222137. The reversal of 1304222123 is 3212224031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3212224031 = 1033 ⋅3109607.

It is a cyclic number.

It is not a de Polignac number, because 1304222123 - 2¹⁶ = 1304156587 is a prime.

It is a super-2 number, since 2×1304222123² = 3401990692245254258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1304222095 and 1304222104.

It is not an unprimeable number, because it can be changed into a prime (1304227123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114503 + ... + 125376.

It is an arithmetic number, because the mean of its divisors is an integer number (326116860).

Almost surely, 2^1304222123 is an apocalyptic number.

1304222123 is a deficient number, since it is larger than the sum of its proper divisors (245317).

1304222123 is an equidigital number, since it uses as much as digits as its factorization.

1304222123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245316.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1304222123 is about 36114.0156033637. The cubic root of 1304222123 is about 1092.5731434149.

Adding to 1304222123 its reverse (3212224031), we get a palindrome (4516446154).

The spelling of 1304222123 in words is "one billion, three hundred four million, two hundred twenty-two thousand, one hundred twenty-three".