1103203331113 has 4 divisors (see below), whose sum is σ = 1188065125828. Its totient is φ = 1018341536400.

The previous prime is 1103203331107. The next prime is 1103203331137. The reversal of 1103203331113 is 3111333023011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 469455188224 + 633748142889 = 685168^2 + 796083^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103203331113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1103203301113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42430897338 + ... + 42430897363.

It is an arithmetic number, because the mean of its divisors is an integer number (297016281457).

Almost surely, 2^{1103203331113} is an apocalyptic number.

1103203331113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1103203331113 is a deficient number, since it is larger than the sum of its proper divisors (84861794715).

1103203331113 is an equidigital number, since it uses as much as digits as its factorization.

1103203331113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84861794714.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 1103203331113 its reverse (3111333023011), we get a palindrome (4214536354124).

The spelling of 1103203331113 in words is "one trillion, one hundred three billion, two hundred three million, three hundred thirty-one thousand, one hundred thirteen".