1100020203103 has 8 divisors (see below), whose sum is σ = 1110191678640. Its totient is φ = 1089895067520.

The previous prime is 1100020203067. The next prime is 1100020203259. The reversal of 1100020203103 is 3013020200011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1100020203103 - 2¹⁷ = 1100020072031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100020203803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11537293 + ... + 11632246.

It is an arithmetic number, because the mean of its divisors is an integer number (138773959830).

Almost surely, 2^{1100020203103} is an apocalyptic number.

1100020203103 is a deficient number, since it is larger than the sum of its proper divisors (10171475537).

1100020203103 is a wasteful number, since it uses less digits than its factorization.

1100020203103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23169977.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 1100020203103 its reverse (3013020200011), we get a palindrome (4113040403114).

The spelling of 1100020203103 in words is "one trillion, one hundred billion, twenty million, two hundred three thousand, one hundred three".