1001312331338 has 8 divisors (see below), whose sum is σ = 1638511087680. Its totient is φ = 455141968780.

The previous prime is 1001312331337. The next prime is 1001312331431. The reversal of 1001312331338 is 8331332131001.

1001312331338 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1001312331338.

It is not an unprimeable number, because it can be changed into a prime (1001312331337) 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, 22757098418 + ... + 22757098461.

It is an arithmetic number, because the mean of its divisors is an integer number (204813885960).

Almost surely, 2^{1001312331338} is an apocalyptic number.

1001312331338 is a deficient number, since it is larger than the sum of its proper divisors (637198756342).

1001312331338 is a wasteful number, since it uses less digits than its factorization.

1001312331338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45514196892.

The product of its (nonzero) digits is 3888, while the sum is 29.

Adding to 1001312331338 its reverse (8331332131001), we get a palindrome (9332644462339).

The spelling of 1001312331338 in words is "one trillion, one billion, three hundred twelve million, three hundred thirty-one thousand, three hundred thirty-eight".