1310242241521 has 12 divisors (see below), whose sum is σ = 1379980695600. Its totient is φ = 1243619707568.

The previous prime is 1310242241519. The next prime is 1310242241557. The reversal of 1310242241521 is 1251422420131.

It is a happy number.

It is not a de Polignac number, because 1310242241521 - 2¹ = 1310242241519 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1310242241521.

It is not an unprimeable number, because it can be changed into a prime (1310242241921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13153411 + ... + 13252648.

It is an arithmetic number, because the mean of its divisors is an integer number (114998391300).

Almost surely, 2^{1310242241521} is an apocalyptic number.

It is an amenable number.

1310242241521 is a deficient number, since it is larger than the sum of its proper divisors (69738454079).

1310242241521 is an equidigital number, since it uses as much as digits as its factorization.

1310242241521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26406176 (or 26406147 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 1310242241521 its reverse (1251422420131), we get a palindrome (2561664661652).

The spelling of 1310242241521 in words is "one trillion, three hundred ten billion, two hundred forty-two million, two hundred forty-one thousand, five hundred twenty-one".