1311423356411 has 4 divisors (see below), whose sum is σ = 1498769550192. Its totient is φ = 1124077162632.

The previous prime is 1311423356401. The next prime is 1311423356431. The reversal of 1311423356411 is 1146533241131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1311423356411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311423356401) 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, 93673096880 + ... + 93673096893.

It is an arithmetic number, because the mean of its divisors is an integer number (374692387548).

Almost surely, 2^{1311423356411} is an apocalyptic number.

1311423356411 is a deficient number, since it is larger than the sum of its proper divisors (187346193781).

1311423356411 is an equidigital number, since it uses as much as digits as its factorization.

1311423356411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187346193780.

The product of its digits is 25920, while the sum is 35.

Adding to 1311423356411 its reverse (1146533241131), we get a palindrome (2457956597542).

The spelling of 1311423356411 in words is "one trillion, three hundred eleven billion, four hundred twenty-three million, three hundred fifty-six thousand, four hundred eleven".