2101404104 has 24 divisors (see below), whose sum is σ = 4158428310. Its totient is φ = 995400576.

The previous prime is 2101404031. The next prime is 2101404113. The reversal of 2101404104 is 4014041012.

It can be written as a sum of positive squares in only one way, i.e., 1840581604 + 260822500 = 42902^2 + 16150^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 360929 + ... + 366704.

Almost surely, 2^2101404104 is an apocalyptic number.

It is an amenable number.

2101404104 is a deficient number, since it is larger than the sum of its proper divisors (2057024206).

2101404104 is a wasteful number, since it uses less digits than its factorization.

2101404104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727677 (or 727654 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2101404104 is about 45841.0744202184. The cubic root of 2101404104 is about 1280.8645087550.

Adding to 2101404104 its reverse (4014041012), we get a palindrome (6115445116).

The spelling of 2101404104 in words is "two billion, one hundred one million, four hundred four thousand, one hundred four".