2101540204 has 48 divisors (see below), whose sum is σ = 3999131136. Its totient is φ = 962438400.

The previous prime is 2101540183. The next prime is 2101540307. The reversal of 2101540204 is 4020451012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 908209 + ... + 910519.

It is an arithmetic number, because the mean of its divisors is an integer number (83315232).

Almost surely, 2^2101540204 is an apocalyptic number.

It is an amenable number.

2101540204 is a deficient number, since it is larger than the sum of its proper divisors (1897590932).

2101540204 is a wasteful number, since it uses less digits than its factorization.

2101540204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2686 (or 2684 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 2101540204 is about 45842.5588727331. The cubic root of 2101540204 is about 1280.8921604088.

Adding to 2101540204 its reverse (4020451012), we get a palindrome (6121991216).

The spelling of 2101540204 in words is "two billion, one hundred one million, five hundred forty thousand, two hundred four".