2001120008 has 8 divisors (see below), whose sum is σ = 3752100030. Its totient is φ = 1000560000.

The previous prime is 2001120001. The next prime is 2001120013. The reversal of 2001120008 is 8000211002.

It can be written as a sum of positive squares in only one way, i.e., 1860887044 + 140232964 = 43138^2 + 11842^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 2001119974 and 2001120001.

It is not an unprimeable number, because it can be changed into a prime (2001120001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125069993 + ... + 125070008.

Almost surely, 2^2001120008 is an apocalyptic number.

It is an amenable number.

2001120008 is a deficient number, since it is larger than the sum of its proper divisors (1750980022).

2001120008 is a wasteful number, since it uses less digits than its factorization.

2001120008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250140007 (or 250140003 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2001120008 is about 44733.8798675009. The cubic root of 2001120008 is about 1260.1561929492.

The spelling of 2001120008 in words is "two billion, one million, one hundred twenty thousand, eight".