1312133202001 has 4 divisors (see below), whose sum is σ = 1312141873252. Its totient is φ = 1312124530752.

The previous prime is 1312133201987. The next prime is 1312133202067. The reversal of 1312133202001 is 1002023312131.

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 269569678401 + 1042563523600 = 519201^2 + 1021060^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312133202001 - 2²⁷ = 1311998984273 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 1312133202001.

It is not an unprimeable number, because it can be changed into a prime (1312133202101) 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, 4104540 + ... + 4412653.

It is an arithmetic number, because the mean of its divisors is an integer number (328035468313).

Almost surely, 2^{1312133202001} is an apocalyptic number.

It is an amenable number.

1312133202001 is a deficient number, since it is larger than the sum of its proper divisors (8671251).

1312133202001 is an equidigital number, since it uses as much as digits as its factorization.

1312133202001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8671250.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1312133202001 its reverse (1002023312131), we get a palindrome (2314156514132).

The spelling of 1312133202001 in words is "one trillion, three hundred twelve billion, one hundred thirty-three million, two hundred two thousand, one".