123331100203 has 32 divisors (see below), whose sum is σ = 134350684160. Its totient is φ = 112833453600.

The previous prime is 123331100173. The next prime is 123331100219. The reversal of 123331100203 is 302001133321.

It is a cyclic number.

It is not a de Polignac number, because 123331100203 - 2⁹ = 123331099691 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (123331104203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27508600 + ... + 27513082.

It is an arithmetic number, because the mean of its divisors is an integer number (4198458880).

Almost surely, 2^123331100203 is an apocalyptic number.

123331100203 is a deficient number, since it is larger than the sum of its proper divisors (11019583957).

123331100203 is a wasteful number, since it uses less digits than its factorization.

123331100203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4919.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 123331100203 its reverse (302001133321), we get a palindrome (425332233524).

The spelling of 123331100203 in words is "one hundred twenty-three billion, three hundred thirty-one million, one hundred thousand, two hundred three".