1316553231326 has 8 divisors (see below), whose sum is σ = 1974842056800. Its totient is φ = 658272545728.

The previous prime is 1316553231299. The next prime is 1316553231341. The reversal of 1316553231326 is 6231323556131.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1613126 + ... + 2288073.

It is an arithmetic number, because the mean of its divisors is an integer number (246855257100).

Almost surely, 2^{1316553231326} is an apocalyptic number.

1316553231326 is a deficient number, since it is larger than the sum of its proper divisors (658288825474).

1316553231326 is a wasteful number, since it uses less digits than its factorization.

1316553231326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4069938.

The product of its digits is 291600, while the sum is 41.

Adding to 1316553231326 its reverse (6231323556131), we get a palindrome (7547876787457).

The spelling of 1316553231326 in words is "one trillion, three hundred sixteen billion, five hundred fifty-three million, two hundred thirty-one thousand, three hundred twenty-six".