1304031311 has 8 divisors (see below), whose sum is σ = 1424093184. Its totient is φ = 1184221720.

The previous prime is 1304031263. The next prime is 1304031329. The reversal of 1304031311 is 1131304031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1304031311 - 2¹⁴ = 1304014927 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 1304031311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304031331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52175 + ... + 73008.

It is an arithmetic number, because the mean of its divisors is an integer number (178011648).

Almost surely, 2^1304031311 is an apocalyptic number.

1304031311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1304031311 is a deficient number, since it is larger than the sum of its proper divisors (120061873).

1304031311 is a wasteful number, since it uses less digits than its factorization.

1304031311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126141.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1304031311 is about 36111.3737069085. The cubic root of 1304031311 is about 1092.5198584643.

Adding to 1304031311 its reverse (1131304031), we get a palindrome (2435335342).

The spelling of 1304031311 in words is "one billion, three hundred four million, thirty-one thousand, three hundred eleven".