1311234400442 has 8 divisors (see below), whose sum is σ = 1966883651616. Its totient is φ = 655606516572.

The previous prime is 1311234400433. The next prime is 1311234400447. The reversal of 1311234400442 is 2440044321131.

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

It is not an unprimeable number, because it can be changed into a prime (1311234400447) 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, 5187518 + ... + 5434409.

It is an arithmetic number, because the mean of its divisors is an integer number (245860456452).

Almost surely, 2^{1311234400442} is an apocalyptic number.

1311234400442 is a deficient number, since it is larger than the sum of its proper divisors (655649251174).

1311234400442 is a wasteful number, since it uses less digits than its factorization.

1311234400442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10683652.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 1311234400442 its reverse (2440044321131), we get a palindrome (3751278721573).

The spelling of 1311234400442 in words is "one trillion, three hundred eleven billion, two hundred thirty-four million, four hundred thousand, four hundred forty-two".