2001101142 has 8 divisors (see below), whose sum is σ = 4002202296. Its totient is φ = 667033712.

The previous prime is 2001101117. The next prime is 2001101153. The reversal of 2001101142 is 2411011002.

It is a happy number.

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

2001101142 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166758423 + ... + 166758434.

It is an arithmetic number, because the mean of its divisors is an integer number (500275287).

Almost surely, 2^2001101142 is an apocalyptic number.

2001101142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2001101142 is a wasteful number, since it uses less digits than its factorization.

2001101142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333516862.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2001101142 is about 44733.6689977471. The cubic root of 2001101142 is about 1260.1522328033.

Adding to 2001101142 its reverse (2411011002), we get a palindrome (4412112144).

The spelling of 2001101142 in words is "two billion, one million, one hundred one thousand, one hundred forty-two".