11421010404 has 18 divisors (see below), whose sum is σ = 28869776390. Its totient is φ = 3807003456.

The previous prime is 11421010379. The next prime is 11421010417. The reversal of 11421010404 is 40401012411.

It can be written as a sum of positive squares in only one way, i.e., 8556620004 + 2864390400 = 92502^2 + 53520^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 158625109 + ... + 158625180.

Almost surely, 2^11421010404 is an apocalyptic number.

It is an amenable number.

11421010404 is an abundant number, since it is smaller than the sum of its proper divisors (17448765986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11421010404 is a wasteful number, since it uses less digits than its factorization.

11421010404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317250299 (or 317250294 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11421010404 its reverse (40401012411), we get a palindrome (51822022815).

The spelling of 11421010404 in words is "eleven billion, four hundred twenty-one million, ten thousand, four hundred four".