11011043420 has 24 divisors (see below), whose sum is σ = 24901898784. Its totient is φ = 4065615936.

The previous prime is 11011043413. The next prime is 11011043431. The reversal of 11011043420 is 2434011011.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21174824 + ... + 21175343.

It is an arithmetic number, because the mean of its divisors is an integer number (1037579116).

Almost surely, 2^11011043420 is an apocalyptic number.

11011043420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011043420 is an abundant number, since it is smaller than the sum of its proper divisors (13890855364).

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

11011043420 is a wasteful number, since it uses less digits than its factorization.

11011043420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42350189 (or 42350187 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 11011043420 its reverse (2434011011), we get a palindrome (13445054431).

The spelling of 11011043420 in words is "eleven billion, eleven million, forty-three thousand, four hundred twenty".