1312011202301 has 4 divisors (see below), whose sum is σ = 1312025795100. Its totient is φ = 1311996609504.

The previous prime is 1312011202277. The next prime is 1312011202331. The reversal of 1312011202301 is 1032021102131.

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 586601278201 + 725409924100 = 765899^2 + 851710^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312011202301 - 2²⁶ = 1311944093437 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 1312011202301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312011202331) 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, 7160696 + ... + 7341633.

It is an arithmetic number, because the mean of its divisors is an integer number (328006448775).

Almost surely, 2^{1312011202301} is an apocalyptic number.

It is an amenable number.

1312011202301 is a deficient number, since it is larger than the sum of its proper divisors (14592799).

1312011202301 is an equidigital number, since it uses as much as digits as its factorization.

1312011202301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14592798.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1312011202301 its reverse (1032021102131), we get a palindrome (2344032304432).

The spelling of 1312011202301 in words is "one trillion, three hundred twelve billion, eleven million, two hundred two thousand, three hundred one".