123203030012 has 24 divisors (see below), whose sum is σ = 218501070480. Its totient is φ = 60777157760.

The previous prime is 123203029997. The next prime is 123203030023. The reversal of 123203030012 is 210030302321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211238 + ... + 539469.

It is an arithmetic number, because the mean of its divisors is an integer number (9104211270).

Almost surely, 2^123203030012 is an apocalyptic number.

It is an amenable number.

123203030012 is a deficient number, since it is larger than the sum of its proper divisors (95298040468).

123203030012 is a wasteful number, since it uses less digits than its factorization.

123203030012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751261 (or 751259 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 123203030012 its reverse (210030302321), we get a palindrome (333233332333).

The spelling of 123203030012 in words is "one hundred twenty-three billion, two hundred three million, thirty thousand, twelve".