2001201310709 has 2 divisors, whose sum is σ = 2001201310710. Its totient is φ = 2001201310708.

The previous prime is 2001201310699. The next prime is 2001201310723. The reversal of 2001201310709 is 9070131021002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1427475352900 + 573725957809 = 1194770^2 + 757447^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001201310709 - 2²⁴ = 2001184533493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001201310729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000600655354 + 1000600655355.

It is an arithmetic number, because the mean of its divisors is an integer number (1000600655355).

Almost surely, 2^{2001201310709} is an apocalyptic number.

It is an amenable number.

2001201310709 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001201310709 is an equidigital number, since it uses as much as digits as its factorization.

2001201310709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 26.

The spelling of 2001201310709 in words is "two trillion, one billion, two hundred one million, three hundred ten thousand, seven hundred nine".