20103243313526 has 16 divisors (see below), whose sum is σ = 31745993301360. Its totient is φ = 9521379885600.

The previous prime is 20103243313453. The next prime is 20103243313597. The reversal of 20103243313526 is 62531334230102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33281525 + ... + 33880176.

It is an arithmetic number, because the mean of its divisors is an integer number (1984124581335).

Almost surely, 2^{20103243313526} is an apocalyptic number.

20103243313526 is a deficient number, since it is larger than the sum of its proper divisors (11642749987834).

20103243313526 is a wasteful number, since it uses less digits than its factorization.

20103243313526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67169599.

The product of its (nonzero) digits is 77760, while the sum is 35.

Adding to 20103243313526 its reverse (62531334230102), we get a palindrome (82634577543628).

The spelling of 20103243313526 in words is "twenty trillion, one hundred three billion, two hundred forty-three million, three hundred thirteen thousand, five hundred twenty-six".