123203030011 has 4 divisors (see below), whose sum is σ = 123209373112. Its totient is φ = 123196686912.

The previous prime is 123203029997. The next prime is 123203030023. The reversal of 123203030011 is 110030302321.

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 123203030011 - 2⁵ = 123203029979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123203030611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3142326 + ... + 3181291.

It is an arithmetic number, because the mean of its divisors is an integer number (30802343278).

Almost surely, 2^123203030011 is an apocalyptic number.

123203030011 is a deficient number, since it is larger than the sum of its proper divisors (6343101).

123203030011 is an equidigital number, since it uses as much as digits as its factorization.

123203030011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6343100.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 123203030011 its reverse (110030302321), we get a palindrome (233233332332).

The spelling of 123203030011 in words is "one hundred twenty-three billion, two hundred three million, thirty thousand, eleven".