11434421000 has 128 divisors (see below), whose sum is σ = 28756166400. Its totient is φ = 4240051200.

The previous prime is 11434420973. The next prime is 11434421077. The reversal of 11434421000 is 12443411.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1133981 + ... + 1144019.

It is an arithmetic number, because the mean of its divisors is an integer number (224657550).

Almost surely, 2^11434421000 is an apocalyptic number.

11434421000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11434421000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14378083200).

11434421000 is an abundant number, since it is smaller than the sum of its proper divisors (17321745400).

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

11434421000 is a wasteful number, since it uses less digits than its factorization.

11434421000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10144 (or 10130 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 11434421000 its reverse (12443411), we get a palindrome (11446864411).

The spelling of 11434421000 in words is "eleven billion, four hundred thirty-four million, four hundred twenty-one thousand".