1100100010203 has 24 divisors (see below), whose sum is σ = 1673070523280. Its totient is φ = 694632257280.

The previous prime is 1100100010153. The next prime is 1100100010223. The reversal of 1100100010203 is 3020100010011.

It is not a de Polignac number, because 1100100010203 - 2⁹ = 1100100009691 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100100010223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64378 + ... + 1484703.

Almost surely, 2^{1100100010203} is an apocalyptic number.

1100100010203 is a deficient number, since it is larger than the sum of its proper divisors (572970513077).

1100100010203 is a wasteful number, since it uses less digits than its factorization.

1100100010203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553259 (or 1553256 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 1100100010203 its reverse (3020100010011), we get a palindrome (4120200020214).

The spelling of 1100100010203 in words is "one trillion, one hundred billion, one hundred million, ten thousand, two hundred three".