2102402012 has 24 divisors (see below), whose sum is σ = 3793079136. Its totient is φ = 1018882368.

The previous prime is 2102401999. The next prime is 2102402017. The reversal of 2102402012 is 2102042012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102402017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11918 + ... + 65930.

It is an arithmetic number, because the mean of its divisors is an integer number (158044964).

Almost surely, 2^2102402012 is an apocalyptic number.

It is an amenable number.

2102402012 is a deficient number, since it is larger than the sum of its proper divisors (1690677124).

2102402012 is a wasteful number, since it uses less digits than its factorization.

2102402012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54317 (or 54315 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2102402012 is about 45851.9575590836. The cubic root of 2102402012 is about 1281.0672276044.

Adding to 2102402012 its reverse (2102042012), we get a palindrome (4204444024).

Subtracting from 2102402012 its reverse (2102042012), we obtain a square (360000 = 600²).

The spelling of 2102402012 in words is "two billion, one hundred two million, four hundred two thousand, twelve".