2101123204 has 12 divisors (see below), whose sum is σ = 3677319324. Its totient is φ = 1050460544.

The previous prime is 2101123133. The next prime is 2101123207. The reversal of 2101123204 is 4023211012.

It can be written as a sum of positive squares in 2 ways, for example, as 508953600 + 1592169604 = 22560^2 + 39902^2 .

It is not an unprimeable number, because it can be changed into a prime (2101123207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40584 + ... + 76480.

It is an arithmetic number, because the mean of its divisors is an integer number (306443277).

Almost surely, 2^2101123204 is an apocalyptic number.

It is an amenable number.

2101123204 is a deficient number, since it is larger than the sum of its proper divisors (1576196120).

2101123204 is a wasteful number, since it uses less digits than its factorization.

2101123204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50534 (or 50532 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2101123204 is about 45838.0104716599. The cubic root of 2101123204 is about 1280.8074340793.

Adding to 2101123204 its reverse (4023211012), we get a palindrome (6124334216).

The spelling of 2101123204 in words is "two billion, one hundred one million, one hundred twenty-three thousand, two hundred four".