123103201211 has 4 divisors (see below), whose sum is σ = 123887298192. Its totient is φ = 122319104232.

The previous prime is 123103201201. The next prime is 123103201213. The reversal of 123103201211 is 112102301321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112102301321 = 2131 ⋅52605491.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123103201211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123103201211.

It is not an unprimeable number, because it can be changed into a prime (123103201213) 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, 392048255 + ... + 392048568.

It is an arithmetic number, because the mean of its divisors is an integer number (30971824548).

Almost surely, 2^123103201211 is an apocalyptic number.

123103201211 is a deficient number, since it is larger than the sum of its proper divisors (784096981).

123103201211 is an equidigital number, since it uses as much as digits as its factorization.

123103201211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784096980.

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

Adding to 123103201211 its reverse (112102301321), we get a palindrome (235205502532).

The spelling of 123103201211 in words is "one hundred twenty-three billion, one hundred three million, two hundred one thousand, two hundred eleven".