2001111015 has 16 divisors (see below), whose sum is σ = 3202560000. Its totient is φ = 1066998432.

The previous prime is 2001110999. The next prime is 2001111017. The reversal of 2001111015 is 5101111002.

It is not a de Polignac number, because 2001111015 - 2⁴ = 2001110999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001111017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58086 + ... + 85884.

It is an arithmetic number, because the mean of its divisors is an integer number (200160000).

Almost surely, 2^2001111015 is an apocalyptic number.

2001111015 is a deficient number, since it is larger than the sum of its proper divisors (1201448985).

2001111015 is a wasteful number, since it uses less digits than its factorization.

2001111015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32606.

The product of its (nonzero) digits is 10, while the sum is 12.

The square root of 2001111015 is about 44733.7793507323. The cubic root of 2001111015 is about 1260.1543052394.

Adding to 2001111015 its reverse (5101111002), we get a palindrome (7102222017).

The spelling of 2001111015 in words is "two billion, one million, one hundred eleven thousand, fifteen".