11100203423 has 2 divisors, whose sum is σ = 11100203424. Its totient is φ = 11100203422.

The previous prime is 11100203417. The next prime is 11100203437. The reversal of 11100203423 is 32430200111.

It is a weak prime.

It is an emirp because it is prime and its reverse (32430200111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11100203423 - 2⁴ = 11100203407 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11100208423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550101711 + 5550101712.

It is an arithmetic number, because the mean of its divisors is an integer number (5550101712).

Almost surely, 2^11100203423 is an apocalyptic number.

11100203423 is a deficient number, since it is larger than the sum of its proper divisors (1).

11100203423 is an equidigital number, since it uses as much as digits as its factorization.

11100203423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 11100203423 its reverse (32430200111), we get a palindrome (43530403534).

The spelling of 11100203423 in words is "eleven billion, one hundred million, two hundred three thousand, four hundred twenty-three".