1101112120203 has 32 divisors (see below), whose sum is σ = 1531355904000. Its totient is φ = 703004209920.

The previous prime is 1101112120183. The next prime is 1101112120217. The reversal of 1101112120203 is 3020212111011.

It is not a de Polignac number, because 1101112120203 - 2¹⁰ = 1101112119179 is a prime.

It is a super-2 number, since 2×1101112120203² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1101112100203) 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 31 ways as a sum of consecutive naturals, for example, 3376173 + ... + 3687921.

It is an arithmetic number, because the mean of its divisors is an integer number (47854872000).

Almost surely, 2^{1101112120203} is an apocalyptic number.

1101112120203 is a deficient number, since it is larger than the sum of its proper divisors (430243783797).

1101112120203 is a wasteful number, since it uses less digits than its factorization.

1101112120203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312179.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1101112120203 its reverse (3020212111011), we get a palindrome (4121324231214).

The spelling of 1101112120203 in words is "one trillion, one hundred one billion, one hundred twelve million, one hundred twenty thousand, two hundred three".