2101311210 has 32 divisors (see below), whose sum is σ = 5044358592. Its totient is φ = 560215040.

The previous prime is 2101311187. The next prime is 2101311217. The reversal of 2101311210 is 121131012.

It is not an unprimeable number, because it can be changed into a prime (2101311217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221770 + ... + 231050.

It is an arithmetic number, because the mean of its divisors is an integer number (157636206).

Almost surely, 2^2101311210 is an apocalyptic number.

2101311210 is an abundant number, since it is smaller than the sum of its proper divisors (2943047382).

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

2101311210 is a wasteful number, since it uses less digits than its factorization.

2101311210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16838.

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

The square root of 2101311210 is about 45840.0611910586. The cubic root of 2101311210 is about 1280.8456346474.

Adding to 2101311210 its reverse (121131012), we get a palindrome (2222442222).

It can be divided in two parts, 21013 and 11210, that added together give a palindrome (32223).

The spelling of 2101311210 in words is "two billion, one hundred one million, three hundred eleven thousand, two hundred ten".