12001211001313 has 4 divisors (see below), whose sum is σ = 12227648944788. Its totient is φ = 11774773057840.

The previous prime is 12001211001259. The next prime is 12001211001317. The reversal of 12001211001313 is 31310011210021.

It is a happy number.

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 9849849571809 + 2151361429504 = 3138447^2 + 1466752^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12001211001313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12001211001317) 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, 113218971658 + ... + 113218971763.

It is an arithmetic number, because the mean of its divisors is an integer number (3056912236197).

Almost surely, 2^{12001211001313} is an apocalyptic number.

It is an amenable number.

12001211001313 is a deficient number, since it is larger than the sum of its proper divisors (226437943475).

12001211001313 is an equidigital number, since it uses as much as digits as its factorization.

12001211001313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226437943474.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 12001211001313 its reverse (31310011210021), we get a palindrome (43311222211334).

The spelling of 12001211001313 in words is "twelve trillion, one billion, two hundred eleven million, one thousand, three hundred thirteen".