1310311051505 has 32 divisors (see below), whose sum is σ = 1616113876608. Its totient is φ = 1019309760000.

The previous prime is 1310311051481. The next prime is 1310311051513. The reversal of 1310311051505 is 5051501130131.

It is a de Polignac number, because none of the positive numbers 2^k-1310311051505 is a prime.

It is a super-2 number, since 2×1310311051505² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150935765 + ... + 150944445.

It is an arithmetic number, because the mean of its divisors is an integer number (50503558644).

Almost surely, 2^{1310311051505} is an apocalyptic number.

It is an amenable number.

1310311051505 is a deficient number, since it is larger than the sum of its proper divisors (305802825103).

1310311051505 is a wasteful number, since it uses less digits than its factorization.

1310311051505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11777.

The product of its (nonzero) digits is 1125, while the sum is 26.

Adding to 1310311051505 its reverse (5051501130131), we get a palindrome (6361812181636).

The spelling of 1310311051505 in words is "one trillion, three hundred ten billion, three hundred eleven million, fifty-one thousand, five hundred five".