2102130004 has 12 divisors (see below), whose sum is σ = 3961706644. Its totient is φ = 970213824.

The previous prime is 2102129993. The next prime is 2102130029. The reversal of 2102130004 is 4000312012.

It can be written as a sum of positive squares in 2 ways, for example, as 1033493904 + 1068636100 = 32148^2 + 32690^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20212737 + ... + 20212840.

Almost surely, 2^2102130004 is an apocalyptic number.

It is an amenable number.

2102130004 is a deficient number, since it is larger than the sum of its proper divisors (1859576640).

2102130004 is a wasteful number, since it uses less digits than its factorization.

2102130004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40425594 (or 40425592 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2102130004 is about 45848.9913084247. The cubic root of 2102130004 is about 1281.0119772192.

Adding to 2102130004 its reverse (4000312012), we get a palindrome (6102442016).

The spelling of 2102130004 in words is "two billion, one hundred two million, one hundred thirty thousand, four".