11023444421 has 8 divisors (see below), whose sum is σ = 12026365824. Its totient is φ = 10020654720.

The previous prime is 11023444403. The next prime is 11023444423. The reversal of 11023444421 is 12444432011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11023444421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11023444423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241781 + ... + 283733.

It is an arithmetic number, because the mean of its divisors is an integer number (1503295728).

Almost surely, 2^11023444421 is an apocalyptic number.

11023444421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11023444421 is a deficient number, since it is larger than the sum of its proper divisors (1002921403).

11023444421 is a wasteful number, since it uses less digits than its factorization.

11023444421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65851.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 11023444421 its reverse (12444432011), we get a palindrome (23467876432).

The spelling of 11023444421 in words is "eleven billion, twenty-three million, four hundred forty-four thousand, four hundred twenty-one".