11351021444 has 24 divisors (see below), whose sum is σ = 22738752960. Its totient is φ = 4856857056.

The previous prime is 11351021441. The next prime is 11351021447. The reversal of 11351021444 is 44412015311.

It is an interprime number because it is at equal distance from previous prime (11351021441) and next prime (11351021447).

It is not an unprimeable number, because it can be changed into a prime (11351021441) 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, 310127 + ... + 344790.

It is an arithmetic number, because the mean of its divisors is an integer number (947448040).

Almost surely, 2^11351021444 is an apocalyptic number.

11351021444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11351021444 is an abundant number, since it is smaller than the sum of its proper divisors (11387731516).

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

11351021444 is a wasteful number, since it uses less digits than its factorization.

11351021444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655547 (or 655545 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 11351021444 its reverse (44412015311), we get a palindrome (55763036755).

The spelling of 11351021444 in words is "eleven billion, three hundred fifty-one million, twenty-one thousand, four hundred forty-four".