1311045240142 has 32 divisors (see below), whose sum is σ = 2167853048928. Its totient is φ = 589684800000.

The previous prime is 1311045240049. The next prime is 1311045240157. The reversal of 1311045240142 is 2410425401131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1311045240142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3652642 + ... + 3995482.

It is an arithmetic number, because the mean of its divisors is an integer number (67745407779).

Almost surely, 2^{1311045240142} is an apocalyptic number.

1311045240142 is a deficient number, since it is larger than the sum of its proper divisors (856807808786).

1311045240142 is a wasteful number, since it uses less digits than its factorization.

1311045240142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344676.

The product of its (nonzero) digits is 3840, while the sum is 28.

The spelling of 1311045240142 in words is "one trillion, three hundred eleven billion, forty-five million, two hundred forty thousand, one hundred forty-two".