1311320100404 has 12 divisors (see below), whose sum is σ = 2296481569284. Its totient is φ = 655182509184.

The previous prime is 1311320100383. The next prime is 1311320100451. The reversal of 1311320100404 is 4040010231131.

It can be written as a sum of positive squares in 2 ways, for example, as 1183548168100 + 127771932304 = 1087910^2 + 357452^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119379077 + ... + 119390060.

It is an arithmetic number, because the mean of its divisors is an integer number (191373464107).

Almost surely, 2^{1311320100404} is an apocalyptic number.

It is an amenable number.

1311320100404 is a deficient number, since it is larger than the sum of its proper divisors (985161468880).

1311320100404 is a wasteful number, since it uses less digits than its factorization.

1311320100404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238770514 (or 238770512 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1311320100404 its reverse (4040010231131), we get a palindrome (5351330331535).

The spelling of 1311320100404 in words is "one trillion, three hundred eleven billion, three hundred twenty million, one hundred thousand, four hundred four".