10521111344 has 40 divisors (see below), whose sum is σ = 20918287632. Its totient is φ = 5123543040.

The previous prime is 10521111343. The next prime is 10521111373. The reversal of 10521111344 is 44311112501.

10521111344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10521111344² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10521111343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221204 + ... + 264524.

Almost surely, 2^10521111344 is an apocalyptic number.

It is an amenable number.

10521111344 is a deficient number, since it is larger than the sum of its proper divisors (10397176288).

10521111344 is a wasteful number, since it uses less digits than its factorization.

10521111344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43725 (or 43719 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 10521111344 its reverse (44311112501), we get a palindrome (54832223845).

The spelling of 10521111344 in words is "ten billion, five hundred twenty-one million, one hundred eleven thousand, three hundred forty-four".