1311124420342 has 16 divisors (see below), whose sum is σ = 2146044196800. Its totient is φ = 595807903240.

The previous prime is 1311124420279. The next prime is 1311124420343. The reversal of 1311124420342 is 2430244211131.

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 1311124420342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311124420343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7802092 + ... + 7968367.

It is an arithmetic number, because the mean of its divisors is an integer number (134127762300).

Almost surely, 2^{1311124420342} is an apocalyptic number.

1311124420342 is a deficient number, since it is larger than the sum of its proper divisors (834919776458).

1311124420342 is a wasteful number, since it uses less digits than its factorization.

1311124420342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15774251.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 1311124420342 its reverse (2430244211131), we get a palindrome (3741368631473).

The spelling of 1311124420342 in words is "one trillion, three hundred eleven billion, one hundred twenty-four million, four hundred twenty thousand, three hundred forty-two".