1311630400156 has 12 divisors (see below), whose sum is σ = 2297958601680. Its totient is φ = 655070799680.

The previous prime is 1311630400151. The next prime is 1311630400187. The reversal of 1311630400156 is 6510040361131.

It is a super-2 number, since 2×1311630400156² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311630400151) 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 3 ways as a sum of consecutive naturals, for example, 186096136 + ... + 186103183.

It is an arithmetic number, because the mean of its divisors is an integer number (191496550140).

Almost surely, 2^{1311630400156} is an apocalyptic number.

It is an amenable number.

1311630400156 is a deficient number, since it is larger than the sum of its proper divisors (986328201524).

1311630400156 is a wasteful number, since it uses less digits than its factorization.

1311630400156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372200204 (or 372200202 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

Adding to 1311630400156 its reverse (6510040361131), we get a palindrome (7821670761287).

The spelling of 1311630400156 in words is "one trillion, three hundred eleven billion, six hundred thirty million, four hundred thousand, one hundred fifty-six".