1311046661342 has 16 divisors (see below), whose sum is σ = 2238625130112. Its totient is φ = 570020287320.

The previous prime is 1311046661333. The next prime is 1311046661347. The reversal of 1311046661342 is 2431666401131.

It is a junction number, because it is equal to n+sod(n) for n = 1311046661296 and 1311046661305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311046661347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1295500148 + ... + 1295501159.

It is an arithmetic number, because the mean of its divisors is an integer number (139914070632).

Almost surely, 2^{1311046661342} is an apocalyptic number.

1311046661342 is a deficient number, since it is larger than the sum of its proper divisors (927578468770).

1311046661342 is a wasteful number, since it uses less digits than its factorization.

1311046661342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591001343.

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 1311046661342 in words is "one trillion, three hundred eleven billion, forty-six million, six hundred sixty-one thousand, three hundred forty-two".