2102111310 has 64 divisors (see below), whose sum is σ = 5437942272. Its totient is φ = 516986496.

The previous prime is 2102111279. The next prime is 2102111311. The reversal of 2102111310 is 131112012.

It is a super-2 number, since 2×2102111310² = 8837743919259832200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102111311) 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, 726687 + ... + 729573.

It is an arithmetic number, because the mean of its divisors is an integer number (84967848).

Almost surely, 2^2102111310 is an apocalyptic number.

2102111310 is an abundant number, since it is smaller than the sum of its proper divisors (3335830962).

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

2102111310 is a wasteful number, since it uses less digits than its factorization.

2102111310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4777.

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

The square root of 2102111310 is about 45848.7874430720. The cubic root of 2102111310 is about 1281.0081799106.

Adding to 2102111310 its reverse (131112012), we get a palindrome (2233223322).

The spelling of 2102111310 in words is "two billion, one hundred two million, one hundred eleven thousand, three hundred ten".