20101101021344 has 36 divisors (see below), whose sum is σ = 46035110824794. Its totient is φ = 8614757579904.

The previous prime is 20101101021343. The next prime is 20101101021401. The reversal of 20101101021344 is 44312010110102.

It can be written as a sum of positive squares in only one way, i.e., 19135480345744 + 965620675600 = 4374412^2 + 982660^2 .

It is not an unprimeable number, because it can be changed into a prime (20101101021343) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6409788299 + ... + 6409791434.

Almost surely, 2^{20101101021344} is an apocalyptic number.

It is an amenable number.

20101101021344 is an abundant number, since it is smaller than the sum of its proper divisors (25934009803450).

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

20101101021344 is a wasteful number, since it uses less digits than its factorization.

20101101021344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12819579757 (or 12819579742 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 20101101021344 its reverse (44312010110102), we get a palindrome (64413111131446).

The spelling of 20101101021344 in words is "twenty trillion, one hundred one billion, one hundred one million, twenty-one thousand, three hundred forty-four".