2001230311309 has 8 divisors (see below), whose sum is σ = 2118993238080. Its totient is φ = 1883472217536.

The previous prime is 2001230311253. The next prime is 2001230311313. The reversal of 2001230311309 is 9031130321002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2001230311309 - 2¹¹ = 2001230309261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001230311009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337809 + ... + 2028934.

It is an arithmetic number, because the mean of its divisors is an integer number (264874154760).

Almost surely, 2^{2001230311309} is an apocalyptic number.

It is an amenable number.

2001230311309 is a deficient number, since it is larger than the sum of its proper divisors (117762926771).

2001230311309 is a wasteful number, since it uses less digits than its factorization.

2001230311309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416499.

The product of its (nonzero) digits is 972, while the sum is 25.

The spelling of 2001230311309 in words is "two trillion, one billion, two hundred thirty million, three hundred eleven thousand, three hundred nine".