1103603061 has 16 divisors (see below), whose sum is σ = 1625564160. Its totient is φ = 660382320.

The previous prime is 1103603023. The next prime is 1103603071. The reversal of 1103603061 is 1603063011.

It is not a de Polignac number, because 1103603061 - 2¹⁹ = 1103078773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103603071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209055 + ... + 214268.

It is an arithmetic number, because the mean of its divisors is an integer number (101597760).

Almost surely, 2^1103603061 is an apocalyptic number.

1103603061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1103603061 is a deficient number, since it is larger than the sum of its proper divisors (521961099).

1103603061 is a wasteful number, since it uses less digits than its factorization.

1103603061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423416.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 1103603061 is about 33220.5216846455. The cubic root of 1103603061 is about 1033.4059683825.

Adding to 1103603061 its reverse (1603063011), we get a palindrome (2706666072).

The spelling of 1103603061 in words is "one billion, one hundred three million, six hundred three thousand, sixty-one".