11103420221125 has 8 divisors (see below), whose sum is σ = 13857068436120. Its totient is φ = 8882736176800.

The previous prime is 11103420221081. The next prime is 11103420221161. The reversal of 11103420221125 is 52112202430111.

It can be written as a sum of positive squares in 4 ways, for example, as 1515621983236 + 9587798237889 = 1231106^2 + 3096417^2 .

It is not a de Polignac number, because 11103420221125 - 2¹⁷ = 11103420090053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 11103420221125.

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, 44413680760 + ... + 44413681009.

It is an arithmetic number, because the mean of its divisors is an integer number (1732133554515).

Almost surely, 2^{11103420221125} is an apocalyptic number.

It is an amenable number.

11103420221125 is a deficient number, since it is larger than the sum of its proper divisors (2753648214995).

11103420221125 is an frugal number, since it uses more digits than its factorization.

11103420221125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88827361784 (or 88827361774 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 11103420221125 its reverse (52112202430111), we get a palindrome (63215622651236).

The spelling of 11103420221125 in words is "eleven trillion, one hundred three billion, four hundred twenty million, two hundred twenty-one thousand, one hundred twenty-five".