1101111010203 has 16 divisors (see below), whose sum is σ = 1483370532000. Its totient is φ = 726463635456.

The previous prime is 1101111010183. The next prime is 1101111010303. The reversal of 1101111010203 is 3020101111011.

It is not a de Polignac number, because 1101111010203 - 2¹⁷ = 1101110879131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1101111010003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5315923 + ... + 5519171.

It is an arithmetic number, because the mean of its divisors is an integer number (92710658250).

Almost surely, 2^{1101111010203} is an apocalyptic number.

1101111010203 is a deficient number, since it is larger than the sum of its proper divisors (382259521797).

1101111010203 is a wasteful number, since it uses less digits than its factorization.

1101111010203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221966.

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 1101111010203 its reverse (3020101111011), we get a palindrome (4121212121214).

The spelling of 1101111010203 in words is "one trillion, one hundred one billion, one hundred eleven million, ten thousand, two hundred three".