11203112123 has 8 divisors (see below), whose sum is σ = 12859469280. Its totient is φ = 9560733120.

The previous prime is 11203112111. The next prime is 11203112209. The reversal of 11203112123 is 32121130211.

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 11203112123 - 2⁶ = 11203112059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11203112923) 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, 3492818 + ... + 3496023.

It is an arithmetic number, because the mean of its divisors is an integer number (1607433660).

Almost surely, 2^11203112123 is an apocalyptic number.

11203112123 is a deficient number, since it is larger than the sum of its proper divisors (1656357157).

11203112123 is an equidigital number, since it uses as much as digits as its factorization.

11203112123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6989077.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11203112123 its reverse (32121130211), we get a palindrome (43324242334).

The spelling of 11203112123 in words is "eleven billion, two hundred three million, one hundred twelve thousand, one hundred twenty-three".