1103203306544 has 20 divisors (see below), whose sum is σ = 2140729713696. Its totient is φ = 550756928832.

The previous prime is 1103203306529. The next prime is 1103203306573. The reversal of 1103203306544 is 4456033023011.

It is a super-2 number, since 2×1103203306544² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1103203306544.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52784504 + ... + 52805399.

Almost surely, 2^{1103203306544} is an apocalyptic number.

It is an amenable number.

1103203306544 is a deficient number, since it is larger than the sum of its proper divisors (1037526407152).

1103203306544 is a wasteful number, since it uses less digits than its factorization.

1103203306544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105590564 (or 105590558 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 1103203306544 its reverse (4456033023011), we get a palindrome (5559236329555).

The spelling of 1103203306544 in words is "one trillion, one hundred three billion, two hundred three million, three hundred six thousand, five hundred forty-four".