10123111203 has 4 divisors (see below), whose sum is σ = 13497481608. Its totient is φ = 6748740800.

The previous prime is 10123111189. The next prime is 10123111211. The reversal of 10123111203 is 30211132101.

It is a happy number.

10123111203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10123111203 - 2⁶ = 10123111139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10123110203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1687185198 + ... + 1687185203.

It is an arithmetic number, because the mean of its divisors is an integer number (3374370402).

Almost surely, 2^10123111203 is an apocalyptic number.

10123111203 is a deficient number, since it is larger than the sum of its proper divisors (3374370405).

10123111203 is an equidigital number, since it uses as much as digits as its factorization.

10123111203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3374370404.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 10123111203 its reverse (30211132101), we get a palindrome (40334243304).

The spelling of 10123111203 in words is "ten billion, one hundred twenty-three million, one hundred eleven thousand, two hundred three".