2001311003111 has 8 divisors (see below), whose sum is σ = 2289309020544. Its totient is φ = 1713837097080.

The previous prime is 2001311003071. The next prime is 2001311003113. The reversal of 2001311003111 is 1113001131002.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001311003111 is a prime.

It is a super-5 number, since 5×2001311003111⁵ (a number of 63 digits) contains 55555 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001311003113) 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, 131019665 + ... + 131034938.

It is an arithmetic number, because the mean of its divisors is an integer number (286163627568).

Almost surely, 2^{2001311003111} is an apocalyptic number.

2001311003111 is a deficient number, since it is larger than the sum of its proper divisors (287998017433).

2001311003111 is a wasteful number, since it uses less digits than its factorization.

2001311003111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262055701.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 2001311003111 its reverse (1113001131002), we get a palindrome (3114312134113).

The spelling of 2001311003111 in words is "two trillion, one billion, three hundred eleven million, three thousand, one hundred eleven".