2102691012 has 48 divisors (see below), whose sum is σ = 5187383040. Its totient is φ = 661066272.

The previous prime is 2102691011. The next prime is 2102691061. The reversal of 2102691012 is 2101962012.

It is not an unprimeable number, because it can be changed into a prime (2102691011) 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, 31443 + ... + 72069.

It is an arithmetic number, because the mean of its divisors is an integer number (108070480).

Almost surely, 2^2102691012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2102691012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2593691520).

2102691012 is an abundant number, since it is smaller than the sum of its proper divisors (3084692028).

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

2102691012 is a wasteful number, since it uses less digits than its factorization.

2102691012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40880 (or 40878 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 2102691012 is about 45855.1088974827. The cubic root of 2102691012 is about 1281.1259241912.

Subtracting from 2102691012 its reverse (2101962012), we obtain a cube (729000 = 90³).

The spelling of 2102691012 in words is "two billion, one hundred two million, six hundred ninety-one thousand, twelve".