2101133890 has 16 divisors (see below), whose sum is σ = 3810913920. Its totient is φ = 834037360.

The previous prime is 2101133873. The next prime is 2101133893. The reversal of 2101133890 is 983311012.

It is not an unprimeable number, because it can be changed into a prime (2101133893) 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, 800650 + ... + 803269.

It is an arithmetic number, because the mean of its divisors is an integer number (238182120).

Almost surely, 2^2101133890 is an apocalyptic number.

2101133890 is a deficient number, since it is larger than the sum of its proper divisors (1709780030).

2101133890 is a wasteful number, since it uses less digits than its factorization.

2101133890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604057.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 2101133890 is about 45838.1270341623. The cubic root of 2101133890 is about 1280.8096054076.

The spelling of 2101133890 in words is "two billion, one hundred one million, one hundred thirty-three thousand, eight hundred ninety".