1311040231442 has 16 divisors (see below), whose sum is σ = 1970062598400. Its totient is φ = 654353662032.

The previous prime is 1311040231409. The next prime is 1311040231463. The reversal of 1311040231442 is 2441320401131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2495903 + ... + 2975165.

It is an arithmetic number, because the mean of its divisors is an integer number (123128912400).

Almost surely, 2^{1311040231442} is an apocalyptic number.

1311040231442 is a deficient number, since it is larger than the sum of its proper divisors (659022366958).

1311040231442 is a wasteful number, since it uses less digits than its factorization.

1311040231442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481697.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 1311040231442 its reverse (2441320401131), we get a palindrome (3752360632573).

The spelling of 1311040231442 in words is "one trillion, three hundred eleven billion, forty million, two hundred thirty-one thousand, four hundred forty-two".