11421434404 has 12 divisors (see below), whose sum is σ = 20070447628. Its totient is φ = 5687020800.

The previous prime is 11421434399. The next prime is 11421434407. The reversal of 11421434404 is 40443412411.

It can be written as a sum of positive squares in 2 ways, for example, as 8941593600 + 2479840804 = 94560^2 + 49798^2 .

It is not an unprimeable number, because it can be changed into a prime (11421434407) 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, 5923017 + ... + 5924944.

Almost surely, 2^11421434404 is an apocalyptic number.

It is an amenable number.

11421434404 is a deficient number, since it is larger than the sum of its proper divisors (8649013224).

11421434404 is a wasteful number, since it uses less digits than its factorization.

11421434404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11848206 (or 11848204 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 11421434404 its reverse (40443412411), we get a palindrome (51864846815).

The spelling of 11421434404 in words is "eleven billion, four hundred twenty-one million, four hundred thirty-four thousand, four hundred four".