1310242005155 has 4 divisors (see below), whose sum is σ = 1572290406192. Its totient is φ = 1048193604120.

The previous prime is 1310242005133. The next prime is 1310242005211. The reversal of 1310242005155 is 5515002420131.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1310242005155 - 2¹² = 1310242001059 is a prime.

It is a super-2 number, since 2×1310242005155² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131024200511 + ... + 131024200520.

It is an arithmetic number, because the mean of its divisors is an integer number (393072601548).

Almost surely, 2^{1310242005155} is an apocalyptic number.

1310242005155 is a deficient number, since it is larger than the sum of its proper divisors (262048401037).

1310242005155 is an equidigital number, since it uses as much as digits as its factorization.

1310242005155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262048401036.

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 1310242005155 its reverse (5515002420131), we get a palindrome (6825244425286).

The spelling of 1310242005155 in words is "one trillion, three hundred ten billion, two hundred forty-two million, five thousand, one hundred fifty-five".