123203110002 has 128 divisors (see below), whose sum is σ = 291896524800. Its totient is φ = 33939150336.

The previous prime is 123203109989. The next prime is 123203110003. The reversal of 123203110002 is 200011302321.

It is not an unprimeable number, because it can be changed into a prime (123203110003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 129278758 + ... + 129279710.

It is an arithmetic number, because the mean of its divisors is an integer number (2280441600).

Almost surely, 2^123203110002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123203110002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145948262400).

123203110002 is an abundant number, since it is smaller than the sum of its proper divisors (168693414798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123203110002 is a wasteful number, since it uses less digits than its factorization.

123203110002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 123203110002 its reverse (200011302321), we get a palindrome (323214412323).

The spelling of 123203110002 in words is "one hundred twenty-three billion, two hundred three million, one hundred ten thousand, two".