1313565242243 has 8 divisors (see below), whose sum is σ = 1318487898000. Its totient is φ = 1308644346240.

The previous prime is 1313565242239. The next prime is 1313565242251. The reversal of 1313565242243 is 3422425653131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1313565242243 - 2² = 1313565242239 is a prime.

It is a super-2 number, since 2×1313565242243² (a number of 25 digits) contains 22 as substring.

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 1313565242243.

It is not an unprimeable number, because it can be changed into a prime (1313565245243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1065383 + ... + 1939631.

It is an arithmetic number, because the mean of its divisors is an integer number (164810987250).

Almost surely, 2^{1313565242243} is an apocalyptic number.

1313565242243 is a deficient number, since it is larger than the sum of its proper divisors (4922655757).

1313565242243 is an equidigital number, since it uses as much as digits as its factorization.

1313565242243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879877.

The product of its digits is 518400, while the sum is 41.

The spelling of 1313565242243 in words is "one trillion, three hundred thirteen billion, five hundred sixty-five million, two hundred forty-two thousand, two hundred forty-three".