11020421444 has 24 divisors (see below), whose sum is σ = 19851202560. Its totient is φ = 5350496256.

The previous prime is 11020421443. The next prime is 11020421471. The reversal of 11020421444 is 44412402011.

It is not an unprimeable number, because it can be changed into a prime (11020421443) 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, 206909 + ... + 254660.

It is an arithmetic number, because the mean of its divisors is an integer number (827133440).

Almost surely, 2^11020421444 is an apocalyptic number.

It is an amenable number.

11020421444 is a deficient number, since it is larger than the sum of its proper divisors (8830781116).

11020421444 is a wasteful number, since it uses less digits than its factorization.

11020421444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461747 (or 461745 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 11020421444 its reverse (44412402011), we get a palindrome (55432823455).

The spelling of 11020421444 in words is "eleven billion, twenty million, four hundred twenty-one thousand, four hundred forty-four".