1311630503411 has 4 divisors (see below), whose sum is σ = 1314901402824. Its totient is φ = 1308359604000.

The previous prime is 1311630503387. The next prime is 1311630503423. The reversal of 1311630503411 is 1143050361131.

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-1311630503411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311630503471) 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, 1635449105 + ... + 1635449906.

It is an arithmetic number, because the mean of its divisors is an integer number (328725350706).

Almost surely, 2^{1311630503411} is an apocalyptic number.

1311630503411 is a deficient number, since it is larger than the sum of its proper divisors (3270899413).

1311630503411 is an equidigital number, since it uses as much as digits as its factorization.

1311630503411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3270899412.

The product of its (nonzero) digits is 3240, while the sum is 29.

Adding to 1311630503411 its reverse (1143050361131), we get a palindrome (2454680864542).

The spelling of 1311630503411 in words is "one trillion, three hundred eleven billion, six hundred thirty million, five hundred three thousand, four hundred eleven".