1304312111 has 8 divisors (see below), whose sum is σ = 1315883184. Its totient is φ = 1292765760.

The previous prime is 1304312071. The next prime is 1304312143. The reversal of 1304312111 is 1112134031.

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 1304312111 - 2⁶ = 1304312047 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 1304312111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304312161) 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 7 ways as a sum of consecutive naturals, for example, 109211 + ... + 120563.

It is an arithmetic number, because the mean of its divisors is an integer number (164485398).

Almost surely, 2^1304312111 is an apocalyptic number.

1304312111 is a deficient number, since it is larger than the sum of its proper divisors (11571073).

1304312111 is a wasteful number, since it uses less digits than its factorization.

1304312111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12361.

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

The square root of 1304312111 is about 36115.2614693567. The cubic root of 1304312111 is about 1092.5982710904.

Adding to 1304312111 its reverse (1112134031), we get a palindrome (2416446142).

The spelling of 1304312111 in words is "one billion, three hundred four million, three hundred twelve thousand, one hundred eleven".