1101235400203 has 4 divisors (see below), whose sum is σ = 1101255435280. Its totient is φ = 1101215365128.

The previous prime is 1101235400189. The next prime is 1101235400263. The reversal of 1101235400203 is 3020045321011.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1101235400203 - 2²⁹ = 1100698529291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101235400263) 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 3 ways as a sum of consecutive naturals, for example, 9934863 + ... + 10045096.

It is an arithmetic number, because the mean of its divisors is an integer number (275313858820).

Almost surely, 2^{1101235400203} is an apocalyptic number.

1101235400203 is a deficient number, since it is larger than the sum of its proper divisors (20035077).

1101235400203 is an equidigital number, since it uses as much as digits as its factorization.

1101235400203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20035076.

The product of its (nonzero) digits is 720, while the sum is 22.

The spelling of 1101235400203 in words is "one trillion, one hundred one billion, two hundred thirty-five million, four hundred thousand, two hundred three".