1304131350331 has 4 divisors (see below), whose sum is σ = 1380844959192. Its totient is φ = 1227417741472.

The previous prime is 1304131350307. The next prime is 1304131350349. The reversal of 1304131350331 is 1330531314031.

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

It is not a de Polignac number, because 1304131350331 - 2¹³ = 1304131342139 is a prime.

It is a super-2 number, since 2×1304131350331² (a number of 25 digits) contains 22 as substring.

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 1304131350331.

It is not an unprimeable number, because it can be changed into a prime (1304131350391) 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, 38356804405 + ... + 38356804438.

It is an arithmetic number, because the mean of its divisors is an integer number (345211239798).

Almost surely, 2^{1304131350331} is an apocalyptic number.

1304131350331 is a deficient number, since it is larger than the sum of its proper divisors (76713608861).

1304131350331 is an equidigital number, since it uses as much as digits as its factorization.

1304131350331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76713608860.

The product of its (nonzero) digits is 4860, while the sum is 28.

Adding to 1304131350331 its reverse (1330531314031), we get a palindrome (2634662664362).

The spelling of 1304131350331 in words is "one trillion, three hundred four billion, one hundred thirty-one million, three hundred fifty thousand, three hundred thirty-one".