2001101154 has 64 divisors (see below), whose sum is σ = 4533387264. Its totient is φ = 584248896.

The previous prime is 2001101153. The next prime is 2001101159. The reversal of 2001101154 is 4511011002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2001101153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223447 + ... + 232229.

It is an arithmetic number, because the mean of its divisors is an integer number (70834176).

Almost surely, 2^2001101154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2001101154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2266693632).

2001101154 is an abundant number, since it is smaller than the sum of its proper divisors (2532286110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001101154 is a wasteful number, since it uses less digits than its factorization.

2001101154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8951.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 2001101154 is about 44733.6691318743. The cubic root of 2001101154 is about 1260.1522353222.

Adding to 2001101154 its reverse (4511011002), we get a palindrome (6512112156).

The spelling of 2001101154 in words is "two billion, one million, one hundred one thousand, one hundred fifty-four".