2101133120 has 56 divisors (see below), whose sum is σ = 5109813504. Its totient is φ = 822565376.

The previous prime is 2101133117. The next prime is 2101133129. The reversal of 2101133120 is 213311012.

It is a junction number, because it is equal to n+sod(n) for n = 2101133095 and 2101133104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101133129) 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, 54812 + ... + 84891.

Almost surely, 2^2101133120 is an apocalyptic number.

2101133120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101133120 is an abundant number, since it is smaller than the sum of its proper divisors (3008680384).

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

2101133120 is a wasteful number, since it uses less digits than its factorization.

2101133120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139767 (or 139757 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2101133120 is about 45838.1186350400. The cubic root of 2101133120 is about 1280.8094489487.

Adding to 2101133120 its reverse (213311012), we get a palindrome (2314444132).

The spelling of 2101133120 in words is "two billion, one hundred one million, one hundred thirty-three thousand, one hundred twenty".