1311630503457 has 32 divisors (see below), whose sum is σ = 1765532160000. Its totient is φ = 866117265408.

The previous prime is 1311630503423. The next prime is 1311630503471. The reversal of 1311630503457 is 7543050361131.

It is not a de Polignac number, because 1311630503457 - 2⁷ = 1311630503329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311630501457) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 179745633 + ... + 179752929.

It is an arithmetic number, because the mean of its divisors is an integer number (55172880000).

Almost surely, 2^{1311630503457} is an apocalyptic number.

It is an amenable number.

1311630503457 is a deficient number, since it is larger than the sum of its proper divisors (453901656543).

1311630503457 is a wasteful number, since it uses less digits than its factorization.

1311630503457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8685.

The product of its (nonzero) digits is 113400, while the sum is 39.

Adding to 1311630503457 its reverse (7543050361131), we get a palindrome (8854680864588).

The spelling of 1311630503457 in words is "one trillion, three hundred eleven billion, six hundred thirty million, five hundred three thousand, four hundred fifty-seven".