1310443420525 has 24 divisors (see below), whose sum is σ = 1652194445000. Its totient is φ = 1030790188800.

The previous prime is 1310443420499. The next prime is 1310443420567. The reversal of 1310443420525 is 5250243440131.

It can be written as a sum of positive squares in 12 ways, for example, as 573719898249 + 736723522276 = 757443^2 + 858326^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1310443420525 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4035931 + ... + 4348519.

Almost surely, 2^{1310443420525} is an apocalyptic number.

It is an amenable number.

1310443420525 is a deficient number, since it is larger than the sum of its proper divisors (341751024475).

1310443420525 is a wasteful number, since it uses less digits than its factorization.

1310443420525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315409 (or 315404 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 1310443420525 its reverse (5250243440131), we get a palindrome (6560686860656).

The spelling of 1310443420525 in words is "one trillion, three hundred ten billion, four hundred forty-three million, four hundred twenty thousand, five hundred twenty-five".