123203211011 has 8 divisors (see below), whose sum is σ = 125602036560. Its totient is φ = 120807135072.

The previous prime is 123203210971. The next prime is 123203211017. The reversal of 123203211011 is 110112302321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123203211011 - 2¹⁸ = 123202948867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123203211017) by changing a digit.

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, 596801 + ... + 776258.

It is an arithmetic number, because the mean of its divisors is an integer number (15700254570).

Almost surely, 2^123203211011 is an apocalyptic number.

123203211011 is a deficient number, since it is larger than the sum of its proper divisors (2398825549).

123203211011 is a wasteful number, since it uses less digits than its factorization.

123203211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374805.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 123203211011 its reverse (110112302321), we get a palindrome (233315513332).

The spelling of 123203211011 in words is "one hundred twenty-three billion, two hundred three million, two hundred eleven thousand, eleven".