1315143122401 has 4 divisors (see below), whose sum is σ = 1315408437652. Its totient is φ = 1314877807152.

The previous prime is 1315143122383. The next prime is 1315143122417. The reversal of 1315143122401 is 1042213415131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 838662166225 + 476480956176 = 915785^2 + 690276^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1315143122401 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 1315143122401.

It is not an unprimeable number, because it can be changed into a prime (1315143122701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132650190 + ... + 132660103.

It is an arithmetic number, because the mean of its divisors is an integer number (328852109413).

Almost surely, 2^{1315143122401} is an apocalyptic number.

It is an amenable number.

1315143122401 is a deficient number, since it is larger than the sum of its proper divisors (265315251).

1315143122401 is an equidigital number, since it uses as much as digits as its factorization.

1315143122401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265315250.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 1315143122401 its reverse (1042213415131), we get a palindrome (2357356537532).

The spelling of 1315143122401 in words is "one trillion, three hundred fifteen billion, one hundred forty-three million, one hundred twenty-two thousand, four hundred one".