1311302230044 has 48 divisors (see below), whose sum is σ = 3144696794400. Its totient is φ = 425287012608.

The previous prime is 1311302230037. The next prime is 1311302230141. The reversal of 1311302230044 is 4400322031131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1311302229996 and 1311302230023.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 470829 + ... + 1686500.

It is an arithmetic number, because the mean of its divisors is an integer number (65514516550).

Almost surely, 2^{1311302230044} is an apocalyptic number.

It is an amenable number.

1311302230044 is an abundant number, since it is smaller than the sum of its proper divisors (1833394564356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311302230044 is an equidigital number, since it uses as much as digits as its factorization.

1311302230044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2157447 (or 2157371 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1311302230044 its reverse (4400322031131), we get a palindrome (5711624261175).

The spelling of 1311302230044 in words is "one trillion, three hundred eleven billion, three hundred two million, two hundred thirty thousand, forty-four".